Loading external pic question

Question

I made the this tutorial
http://www.kirupa.com/developer/flashcs3/loading_image_as3_pg1.htm
and align the movie clip instance to the stage.
The problem is when I test the movie the picture is loaded
like the movie clip instance is the top left "insertion point" so
the picture is not centered. How can I fix this to make the picture
aligned in the page?
Thanks

Answer 1

Doesn't seems to work
var imageLoader:Loader;
function loadImage(url:String):void {
// Set properties on my Loader object
imageContainer.x = stage.stageWidth / 2 -
imageContainer.width / 2;
imageContainer.y = stage.stageHeight / 2 -
imageContainer.height / 2;
imageLoader = new Loader();
imageLoader.load(new URLRequest(url));
imageLoader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS,
imageLoading);
imageLoader.contentLoaderInfo.addEventListener(Event.COMPLETE,
imageLoaded);
loadImage("rovtest.jpg");
function imageLoaded(e:Event):void {
// Load Image
imageArea.addChild(imageLoader);
function imageLoading(e:ProgressEvent):void {
// Use it to get current download progress
// Hint: You could tie the values to a preloader :)