AS3/ CS4 internal 3d carousel trouble

I have use one of Lee Brimelow's 3d carousel using the SimpleZSorter class.  Now the trouble I am having is:  How do I manipulate this code so that it only shows as the inner wall of the circle.  I only want to see the inside of the circle.  So the image in the center of the stage would be the furthest away.  As of right now the image in the center is the closest.  Can anyone help with this?

Thanks!

package {
	import com.gskinner.motion.GTween;
	import com.leebrimelow.utils.Math2;
	import com.theflashblog.fp10.SimpleZSorter;

	import fl.motion.easing.Exponential;

	import flash.display.Loader;
	import flash.display.Sprite;
	import flash.events.Event;
	import flash.events.MouseEvent;
	import flash.net.URLLoader;
	import flash.net.URLRequest;

	public class Carousel extends Sprite {
		private var container:Sprite;
		private var loader:URLLoader;
		private var anglePer:Number;

		public function Carousel() {
			init();
			loadXML();
		}

		private function loadXML():void {
			loader=new URLLoader(new URLRequest("images.xml"));
			loader.addEventListener(Event.COMPLETE, createCarousel);
		}

		private function createCarousel(e:Event):void {
			var xml:XML=new XML(e.target.data);
			var list:XMLList=xml.image;
			anglePer = (Math.PI*2) / list.length();

			for (var i:int=0; i<list.length(); i++) {
				var imc:imCon = new imCon();
				imc.buttonMode=true;
				imc.addEventListener(MouseEvent.CLICK, onClick);

				var l:Loader = new Loader();
				l.x=-250;
				l.y=-167;
				l.load(new URLRequest(list[i].@src));
				imc.addChild(l);
				imc.scaleX=imc.scaleY=0.3;
				imc.angle = (i*anglePer) - Math.PI/2;
				imc.x=Math.cos(imc.angle)*250;
				imc.z=Math.sin(imc.angle)*250;
				imc.rotationY=36*- i;
				container.addChild(imc);
				//not working properly
				/*if (imc.z<=100) {
					imc.visible=false;
				}*/
			}
		}

		private function onClick(e:MouseEvent):void {
			var tw:GTween = new GTween(container, 0.8, {rotationY:Math2.toDeg(e.currentTarget.angle+Math.PI/2), z:100},
			{ease:Exponential.easeInOut});
			//tw.autoRotation = true;
		}

		private function init():void {
			container = new Sprite();
			container.x=470;
			container.y=150;
			container.z=-200;
			addChild(container);

			cover.addEventListener(MouseEvent.CLICK, stageClick);
			this.addEventListener(Event.ENTER_FRAME, loop);
		}

		private function stageClick(e:MouseEvent):void {
			var tw:GTween=new GTween(container,0.8,{z:400},{ease:Exponential.easeInOut});
		}

		private function loop(e:Event):void {
			container.rotationY=mouseX+250;
			//SimpleZSorter.sortClips(container);

		}
	}
}

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