[daniral]

Ну я как бы так и делаю.

package 
{
	import flash.display.Bitmap;
	import flash.display.Loader;
	import flash.display.Sprite;
	import flash.events.Event;
	import flash.events.ProgressEvent;
	import flash.net.URLRequest;
	import flash.display.StageAlign;
	import flash.display.StageScaleMode;
 
	public class Main extends Sprite 
	{
		[Embed(source = '../bin/loaderW.png')]
		private var loaderClass:Class;
		private var loaderBitmap:Bitmap;
		private var sprLoading:Sprite = new Sprite();
		private var imageArr:Array = new Array();
		private var iterator:int = 0;
		private var decr:Number = 0.015;
		private var imgLoader:Loader;
		private var first:Boolean = true;
		public function Main():void 
		{
			stage.scaleMode = StageScaleMode.NO_SCALE;
			stage.align = StageAlign.TOP_LEFT;
			loaderBitmap = new loaderClass();
			loaderBitmap.x = loaderBitmap.width / 2 * -1;
			loaderBitmap.y = loaderBitmap.height / 2 * -1;
			sprLoading.addChild(loaderBitmap);
			sprLoading.x = stage.stageWidth / 2;
			sprLoading.y = stage.stageHeight / 2;
			addChild(sprLoading);
			for each (var d:* in root.loaderInfo.parameters)
			{
				imgLoader = new Loader();
				imgLoader.load(new URLRequest(d));
				if (first)
				{
					first = false;
					imgLoader.contentLoaderInfo.addEventListener(Event.OPEN, prog);
				}
				imgLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, comp);
			}
		}
		private function prog(e:Event):void 
		{
			addEventListener(Event.ENTER_FRAME, rott);
		}
		private function rott(e:Event):void 
		{
			sprLoading.rotation += 15;
		}
		private function comp(e:Event):void 
		{
			e.target.content.width = stage.stageWidth;
			e.target.content.height = stage.stageHeight;
			imageArr.push(e.target.content);
			addChild(e.target.content);
			if(stage.contains(sprLoading))
				removeChild(sprLoading);
			removeEventListener(Event.ENTER_FRAME, rott);
			if (imageArr.length > 1)
			{
				e.target.content.alpha = 0;
				if (!stage.hasEventListener(Event.ENTER_FRAME))
					addEventListener(Event.ENTER_FRAME, enterFR);
			}
		}
		private function enterFR(e:Event):void 
		{
			imageArr[iterator].alpha += decr;
			if (imageArr[iterator].alpha >= 1)
			{
				imageArr[iterator].alpha = 1;
				if (iterator>0)
					imageArr[iterator - 1].alpha = 0;
				if (iterator==0)
					imageArr[imageArr.length-1].alpha = 0;
				setChildIndex(imageArr[iterator], 0);
				iterator++;
				if (iterator >= imageArr.length)
					iterator = 0;
			}
		}
	}
}

Запускаю через WebSpeed Simulator.
Со скоростью 256 кб.
Не хочет гад стремиться к середине.