Flex/Webservice Permissions Problem

Hi, I'm trying to create a test "Hello World" app on our IIS server.  When the user clicks a button a pop up should say "Hello World!", which is a string returned by a WCF web service on the same server.  I have no problem getting the service to work on an aspx page.  But in Flex debugger I get the error:
[SWF] /TestProject2/TestProject2.swf - 1,110,380 bytes after decompression
Warning: Domain our-server.local.ourserver.com does not specify a meta-policy.  Applying default meta-policy 'master-only'.  This configuration is deprecated.  See http://www.adobe.com/go/strict_policy_files to fix this problem.
Error: Request for resource at http://ftp-server.local.mycompany.com/Service_Upload.svc/basic by requestor from http://upload.mycompany.com/TestProject2/TestProject2.swf is denied due to lack of policy file permissions.
*** Security Sandbox Violation ***
Connection to http://our-server.local.mycompany.com/Service_Upload.svc/basic halted - not permitted from http://upload.mycompany.com/TestProject2/TestProject2.swf
I've created a crossdomain.xml file and tried various settings to try to open up access, including adding *.mycompany.com *.local.mycompany.com, etc., and at the moment I'm using this.
<?xml version="1.0"?>
<!-- http://upload.mycompany.com/crossdomain.xml -->
    <allow-access-from domain='*' to-ports='*' />
I got a demo project to call an external service.  Why am I getting this permissions error on my own server, especially when the service and the swf are on the same server and the crossdomain.xml seems to clearly open up permissions?
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
	import com.cushingco.HelloResultEvent;
    import com.cushingco.Service_Upload;
    import mx.controls.Alert;
    public function sayHello():void {
        var service:Service_Upload = new Service_Upload();
            function (event:HelloResultEvent):void {
    <mx:Button x="296" y="54" label="Click to receive greeting" click="sayHello()"/>

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Fuzzy_Logic_Connect With a Mentor Commented:
First impressions from this:

There is no cross-domain.xml in our-server.local.ourserver.com/

There is a cross-domain.xml in upload.mycompany.com/

The cross-domain.xml needs to be in the folder from which data is being requested from.

Place the cross-domain file in our-server.local.ouserver.com/
In which folder is the crossdomain.xml file located? It needs to be in the root folder of the domain being accessed.
dparkesAuthor Commented:
Fuzzy Logic,
Thanks, that helped me come up with the simple solution to just point the debugger to  http://ftp-server.local.mycompany.com/TestProject2/TestProject2.html (it's internal name) instead of http://upload.mycompany.com/TestProject2/TestProject2.html.
Although both url's point to the same place, Flex apparently didn't like the domain names being different.
The error is gone now.  The event is still not firing and nothing happens when I press the button though.  But I suppose that is a separate problem.  
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