I think it goes something like this:
Code:
var myChildren:Array = new Array([])
function addSwf
{
var iwgResults = new Loader();
iwgResults.load(new URLRequest("win1.swf"));
iwgContainer.addChild(iwgResults);
myChildren.push(iwgResults);
}
// go to and play
myChildren[0].gotoAndPlay(2);