[need help] loading image using XML

hello,
i’m quite new in AS3. really need your help to modified this script.

this is some of the script:

package ca.organa {
	import flash.display.MovieClip;
	import flash.display.Loader;
	import flash.display.SpreadMethod;
	import flash.events.ProgressEvent;
	import flash.display.Sprite;
	import flash.net.URLRequest;
	import flash.events.Event;
	import flash.events.MouseEvent;
	import ca.organa.extras.slider;
	import ca.organa.extras.tools;
	import flash.display.BlendMode;
	import flash.filters.GlowFilter;
	import flash.ui.Mouse;
	public class zoomGuy extends MovieClip {
		private const DIST_TO_DRAG:Number = 20;
		private var imageLoader:Loader = new Loader();
		private var displayLayer:Sprite = new Sprite();
		private var dragOffsetX:Number
		private var dragOffsetY:Number;
		private var stageWidth:Number = 600;
		private var stageHeight:Number = 400;
		private var zoomPosition:Number;
		private var zoomSlider:slider;
		private var theTools:tools;
		private var showIcon:Sprite;
		private var smallDragIcon:dragIcon;
		private var zoomMode:String;
		private var loadBar:MovieClip;
		private var bgClip:MovieClip;
		private var dragRegisterX:Number;
		private var dragRegisterY:Number;
		private var loadURL:String = "pic.jpg";
		private var mouseDownRegistered:Boolean = false;
		private var registerTempDrag:Boolean = false;
		public function zoomGuy() {
			if ( root.loaderInfo.parameters.loadURL != null) {
				loadURL = root.loaderInfo.parameters.loadURL;
			}
			loadBar = getChildByName("bar") as MovieClip;
			bgClip = getChildByName("bg") as MovieClip;
			loadBar.loadBar.scaleX = 0;
			//
			var urlReq:URLRequest = new URLRequest(loadURL);
			imageLoader.load(urlReq);
			imageLoader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, showProgress);
			imageLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, zoomImage);
			addChild(displayLayer)
		}

basically what i planning to do is to change the permanent image URL (“pic.jpg”) to dynamic. if possible, i want it to load URL from XML.

thanks