Doesn't work when loaded into external swf

[gst.10]

Hi Guys,
I've only been working with flash for about 3 weeks and I'm fairly new to programming so any help would be greatly appreciated.

I'm using Flash CS5 with AS3 btw.

///////////////////////////
// Custom Mouse Controls
///////////////////////////


var myCursor = new PCIcursor();  // PCIcursor is a movieclip

myCursor.visible = false;
myCursor.mouseEnabled = false;
myCursor.mouseChildren = false;

// Replace cursor with PCI card outline
function PCICursor(event:MouseEvent):void {
        PCIboard.visible = false;
	Mouse.hide();
	stage.addChild(newCursorOutline);
       stage.addEventListener(MouseEvent.MOUSE_MOVE,mouseMoveHandler);
}


function mouseMoveHandler(evt:MouseEvent):void
{
	newCursorOutline.visible = true;
	newCursorOutline.x = evt.stageX;
	newCursorOutline.y = evt.stageY;
	
}

Ok, the issue I'm having is that when I test this file in flash it seems to work fine. The cursor is replaced with the movieclip I am using and everything functions how it's suppose to. Now when it's uploaded online and loaded into another swf the cursor disappears completely. Any ideas?

[gst.10]

///////////////////////////
// Custom Mouse Controls
///////////////////////////

var myCursor = new PCIcursor();  // PCIcursor is a movieclip

myCursor.visible = false;
myCursor.mouseEnabled = false;
myCursor.mouseChildren = false;

// Replace cursor with PCI card outline
function PCICursor(event:MouseEvent):void {
        PCIboard.visible = false;
	Mouse.hide();
	stage.addChild(myCursor);
       stage.addEventListener(MouseEvent.MOUSE_MOVE,mouseMoveHandler);
}


function mouseMoveHandler(evt:MouseEvent):void
{
	myCursor.visible = true;
	myCursor.x = evt.stageX;
	myCursor.y = evt.stageY;
	
}

Sorry, this is the code I have.

[gst.10]

Any idea guys? I'm clueless. I could really use some help on this. Even if you might have just a small idea of what might be causing it to give me direction. I'm not even sure what to search for.

Thanks in advance!