Resizing loaded youtube video possible?

i,
i’m pulling in a youtube video through a loader, and its all working good, i can change the x and y coordinates etc, but as soon as i try to resize it through the code (with either scaleX/scaleY or width/height) nothing shows up… why can’t i resize the youtube video? or how can i?

here’s the code (which again, works, if i comment out the width/height stuff…

ActionScript Code:
var youtubeLoader:Loader = new Loader();
youtubeLoader.load( new URLRequest( “http://www.youtube.com/v/etcetcetc” ) );
youtubeLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, youtubeLoaded);

function youtubeLoaded(e:Event):void{
youtubeLoader.content.width = 320;//this doesn’t work
youtubeLoader.content.height = 240;//this doesn’t work
youtubeLoader.content.x = 20;
youtubeLoader.content.y = 17;
videoHolderYoutube.addChild(youtubeLoader);
}