Download external SWF and use movieclips from it

load_and_use_external_swf.as

var loader:Loader = new Loader();
var url:URLRequest = new URLRequest("http://path-to-server.com/downloadable_templates.swf");
loader.load(url);
loader.contentLoaderInfo.addEventListener(Event.COMPLETE, onLoaded);

function onLoaded(event:Event):void
{
	var cls: Class = event.target.applicationDomain.getDefinition("MovieClipWithPlaceholders") as Class;
	var mcWithPlaceholders:MovieClip = new cls();
	addChild(mcWithPlaceholders);
	
	// подставляем фотографии в плейсхолдеры
	var facePhoto: Sprite = new UserFaceSprite();
	mcWithPlaceholders.getChildByName("placeholder1").addChild(facePhoto);
}