[Nirth]

var listener:Object = new Object();
var loader:MovieClipLoader = new MovieClipLoader();
loader.addListener(listener);
loader.loadClip("img.jpg",createEmptyMovieClip("container_mc",1));
listener.onLoadProgress = function (target_mc:MovieClip,loadedBytes:Number,totalBytes:Number):Void {
	trace(loadedBytes+"/"+totalBytes);
}

у меня все показывает...