Flex 3: How do I reference a displayobject in a module from a component on the application?

<?xml version="1.0" encoding="utf-8"?>
<mx:Module xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" width="565" height="410" xmlns:custom="components.*" creationComplete="{do_video(parentApplication.sIssue)}" backgroundAlpha="0.0" currentState="Video">
	<mx:Script>
		<![CDATA[
			// ActionScript file
			import flash.filters.BevelFilter;
			import mx.printing.FlexPrintJob;
			import components.navButton;
			import components.PrintView;
			[Bindable]
			public var vidTranscript:String=new String();
			
			public var today:String=new String();
			public var yesterday:String=new String();
			public var tomorrow:String=new String();
			
			
			public function do_video(btnName:String):void{
				parentApplication.printToolTip="Print transcript of the video";
				parentApplication.helpToolTip="Watch the video, and then choose a module to work on";
				
//				parentDocument.currentState="Video";
				parentApplication.printType="Transcript";
				parentApplication.sIssue=btnName;
				
				parentApplication.sModule="video";
				parentApplication.Module="Video";
				
				
			 	switch (btnName){
					case "anim":
						parentApplication.sFullIssue="Animal Rights";
						vidTranscript="Hello. I'm Parthena. I <font color='#0000FF'><a href='event:t01'>went</a></font> to the <font color='#0000FF'><a href='event:izoo'>zoo</a></font> with my <font color='#0000FF'><a href='event:ichildren'>children</a> <a href='event:t02'>yesterday</a></font>. It was a<font color='#0000FF'> <a href='event:ilovely'>lovely sunny day</a></font> and we had a <font color='#0000FF'><a href='event:igoodtime'>good time</a></font>. But I was <font color='#0000FF'><a href='event:iunhappy'>unhappy</a></font> about some of the <font color='#0000FF'><a href='event:icages'>cages</a></font>. They are very <font color='#0000FF'><a href='event:ismall'>small</a></font>. Some of the <font color='#0000FF'><a href='event:ielephants'>elephants</a> </font><font color='#0000FF'><a href='event:t03'>live</a></font> in <font color='#0000FF'><a href='event:itiny'>tiny</a> <a href='event:iconcrete'>concrete</a> <a href='event:iyards'>yards</a></font>. They don't have a very good <font color='#0000FF'><a href='event:t04'>life</a></font>."
						break;
				}
				
    			var hotImagearea:Image=new Image();
    			hotImagearea=this["myHotImage"];
    			var hotTextarea:Text=new Text();
    			hotTextarea=this["myHotText"];
    			hotImagearea.visible=false;
    			hotTextarea.visible=false;
    			
    			var issueTranscript:TextArea=new TextArea();
    			issueTranscript=this["transcript"];
    			issueTranscript.selectable=true;
				issueTranscript.htmlText=vidTranscript;
				issueTranscript.visible=false;
				issueTranscript.addEventListener(TextEvent.LINK, linkHandler);
				
				
			}
			
			private function linkHandler(e:TextEvent):void {
            	var hotlink:String=new String();
            	hotlink=String(e.text);
            	var mouseposx:int=e.target.mouseX;
            	var mouseposy:int=e.target.mouseY;
            	trace(mouseposx);
            	var hottype:String=hotlink.charAt(0);            	
    			var hotImagearea:Image=new Image();
    			hotImagearea=this["myHotImage"];
    			var hotTextarea:Text=new Text();
    			var bevel:BevelFilter=new BevelFilter();
    			bevel.distance=3;
    			hotTextarea=this["myHotText"];
    			hotTextarea.filters=[bevel];
    			hotImagearea.visible=false;
    			hotTextarea.visible=false;
            	switch (hottype) {
            		case "t":
            			trace ("text hotword");
            			var hotText:String=new String();
            			switch (hotlink){
            				case "t01":
            					hotText="<b>went</b><br/><b><i>to go</i></b><br/>I <i>go</i> to the shops everyday.<br/>I <i>went</i> to the shop yesterday."
            					break;
        					case "t02":
        						getToday();
        						hotText="Today is "+today+"<br/><b>Yesterday</b> was "+yesterday+"<br/>Tomorrow will be "+tomorrow;
        						break;
            				case "t03":
            					hotText="<b>live</b><br/><font COLOR='#008000'><i>to live</i></font><br/>I <font COLOR='#008000'>live</font> in a flat.<br/>My mother <font COLOR='#008000'>lives</font> in a house.<br/>"
            					break;
            				case "t04":
            					hotText="<font COLOR='#008000'>life</font><br/>He has a good <font COLOR='#008000'>life</font>.<br/>It has a bad <font COLOR='#008000'>life</font>."
            					break;
            					
            					
 
            			}
            			hotTextarea.htmlText=hotText;
            			hotTextarea.x=this["transcript"].x+mouseposx+10;
            			hotTextarea.y=this["transcript"].y+mouseposy+10;
            			hotTextarea.visible=true;
            			//trace (hotTextarea.textWidth+"  "+hotTextarea.width);
            			//hotTextarea.width=hotTextarea.textWidth;
            			//hotTextarea.height=hotTextarea.textHeight;
            			
            			break;
            		case "i":
            			trace ("hot image");
            			var hotImage:String=new String();
            			var hotname:String=hotlink.slice(1);
            			hotImage="images/"+hotname+".jpg";
    					hotImagearea.source=hotImage;
    					hotImagearea.x=this["transcript"].x+mouseposx+10;
    					hotImagearea.y=this["transcript"].y+mouseposy+10;
    					hotImagearea.visible=true;
            			
            	}
            
   			}
   			
   			public function show_transcript(myMod:video):void{   				
				
//    			var ts:TextArea=new TextArea();
//    			ts=transcript;		
				if (transcript.visible){
					transcript.visible=false;
				}else{
					transcript.visible=true;
				}
   			}
   			public function hideHotText():void{
    			var hotTextarea:Text=new Text()
    			hotTextarea=this["myHotText"];
   				hotTextarea.visible=false;
   			}
			
			
   			public function hideHotImage():void{
    			var hotImage:Image=new Image()
    			hotImage=this["myHotImage"];
   				hotImage.visible=false;
   			}
   			
   			private function getToday():void{
   				var weekDayLabels:Array = new Array("Sunday","Monday","Tuesday", "Wednesday", "Thursday","Friday","Saturday");
			    var myday:Date=new Date();
			    var thisday:int=myday.day;  
			    today=weekDayLabels[thisday];
				if (myday.day==0){
					yesterday="Saturday";
				}else{
					yesterday=weekDayLabels[thisday-1];					
				}
				if (myday.day==6){
					tomorrow="Sunday";
				}else{
					tomorrow=weekDayLabels[thisday+1];					
				}
				
   			}
   			
   			public function videoprint():void{
				parentApplication.mytranscript=this["transcript"];
				var myPrint:FlexPrintJob=new FlexPrintJob();
				if (myPrint.start()!=true){
					return;
				}
				var myPrintform:PrintView=new PrintView();
				myPrintform.setStyle("backgroundColor","#FFFFFF");
				
				myPrint.printAsBitmap=true;
				parentApplication.addChild(myPrintform);
				myPrintform.textfield.text=parentApplication.mytranscript.text;
				myPrintform.videolabel.visible=true;
				myPrint.addObject(myPrintform);
				myPrint.send();
				parentApplication.removeChild(myPrintform);
   			}
		]]>
	</mx:Script>
		<mx:states>
			<mx:State name="Video">
				
			<mx:AddChild position="lastChild">
				<mx:Image x="152.45" y="3" source="images/elements/screen.png" width="260" height="200"/>
			</mx:AddChild>
			<mx:AddChild position="lastChild">
				<mx:VideoDisplay id="gotovideo" x="166.5" y="16.05" width="236" height="175"  autoPlay="false"  source="{'video/'+parentApplication.sIssue+'.flv'}"/>
			</mx:AddChild>
			<mx:AddChild position="lastChild">
				<mx:Image x="7" y="254.6" source="images/elements/text.jpg" width="551" height="198.4"/>
			</mx:AddChild>
			<mx:AddChild position="lastChild">
				<mx:Image x="311.45" y="214.6" source="images/elements/play_down.png" id="playDown"/>
			</mx:AddChild>
			<mx:AddChild position="lastChild">
				<mx:Image x="270" y="212.6" source="images/elements/pause_down.png" id="pauseDown"/>
			</mx:AddChild>
			<mx:AddChild position="lastChild">
				<mx:Image x="316" y="219" id="playOver" source="images/elements/play_up.png" visible="false"/>
			</mx:AddChild>
			<mx:AddChild relativeTo="{playOver}" position="before">
				<mx:Image x="274" y="219" source="images/elements/pause_up.png" id="pauseOver" visible="false"/>
			</mx:AddChild>
			<mx:AddChild position="lastChild">
				<mx:Image x="229" y="214" source="images/elements/rewind_down.png" id="rewindDown"/>
			</mx:AddChild>
			<mx:AddChild position="lastChild">
				<mx:Image x="233" y="219" source="images/elements/rewind_up.png" id="rewindOver" visible="false"/>
			</mx:AddChild>
			<mx:AddChild position="lastChild">
				<custom:navButton x="229" y="211" width="37" height="33" id="rewind"/>
			</mx:AddChild>
			<mx:AddChild position="lastChild">
				<custom:navButton x="274" y="211" width="20" height="35" id="pause"/>
			</mx:AddChild>
			<mx:AddChild position="lastChild">
				<custom:navButton x="309" y="213" width="33.45" height="32.6" id="play"/>
			</mx:AddChild>
			<mx:AddChild position="lastChild">
				<mx:TextArea x="16" y="260.6" width="537" height="184.4" id="transcript" fontSize="18"  visible="true" editable="false"/>
			</mx:AddChild>
			<mx:AddChild position="lastChild">
				<mx:Image x="10" y="130" id="myHotImage" click="hideHotImage()" mouseOut="hideHotImage()"  visible="false"   buttonMode="true" useHandCursor="true"/>
			</mx:AddChild>
			<mx:AddChild position="lastChild">
				<mx:Text x="10" y="130" id="myHotText" click="hideHotText()" mouseOut="hideHotText()"  visible="false"  textAlign="center" fontSize="12" opaqueBackground="0xFFFF00" selectable="false" buttonMode="true" useHandCursor="true" width="31" height="30"/>
			</mx:AddChild>
			<mx:SetProperty name="height" value="455"/>
			
			
			
			</mx:State>
		</mx:states>
</mx:Module>
                                              

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IN THE VAR DEFINITION FOR YOUR CLASS
 
var ts:TextArea = new TextArea();
var myMod:Video;
 
THEN IN THE MAIN FUNCTION FOR YOUR CLASS
 
public function Class()
{
  myMod.addEventListener(FlexEvent.CREATION_COMPLETE, creationHandler);  //The order of these may have to be reversed
  myMod = parentApplication.info.factory.create() as Video;
}
 
THEN:
 
private function creationHandler(e:FlexEvent)
{
  ts = myMod.transcript;
}

                                              

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private function gotoVideo(btnName:String):void{
				trace(btnName);
				
				 var moduleURL:String = "modules/video.swf";  
				 parentApplication.sModule="video";
				 parentApplication.Module="Video";
                parentApplication.info = ModuleManager.getModule(moduleURL);
                if (parentApplication.info != null) {
                    parentApplication.info.addEventListener(ModuleEvent.READY, modEventHandler);
                    parentApplication.info.addEventListener(ModuleEvent.ERROR, modErrorHandler);
                        //module loading success handler
                    parentApplication.info.load();
                }
			}
			
			 private function modEventHandler(e:ModuleEvent):void {
               
				
                //instantiate an add the module to the UI
                parentApplication.info.removeEventListener(ModuleEvent.READY, modEventHandler);
                parentApplication.info.removeEventListener(ModuleEvent.ERROR, modErrorHandler);
//                this.removeAllChildren();
                parentApplication.moduleContainer.removeAllChildren();
                if (module == null) {
                    module = parentApplication.info.factory.create() as UIComponent;
                    if (module != null) {
                        module.x =0;
                        module.y = 0;
                        parentApplication.moduleContainer.addChild(module); 
//                        this.addChild(module);                        
                    }
                }
                trace(parentApplication.sModule);
            }    

                                              

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<mx:Module xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" width="565" height="410" xmlns:custom="components.*" creationComplete="{do_video(parentApplication.sIssue)}" backgroundAlpha="0.0" currentState="Video" creationPolicy="all">
 
<mx:AddChild position="lastChild" creationPolicy="all">
  <mx:TextArea x="16" y="260.6" width="537" height="184.4" id="transcript" fontSize="18"  visible="true" editable="false"/>
</mx:AddChild>
                                              

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