AS3 PreLoader Troubles

I have been trying to make my simple animated preloader work and am just about ready to throw in the towell.
import flash.events.ProgressEvent;
import flash.events.Event;
import flash.net.URLRequest;
myLoader.addEventListener(Event.COMPLETE, onComplete);
myLoader.addEventListener(ProgressEvent.PROGRESS , onProgress);
function onProgress(e:ProgressEvent):void
    var pct:Number = e.bytesLoaded / e.bytesTotal;
function onComplete(e:Event):void
    preloader_mc.X = -1000;
myLoader.load(new URLRequest("D.swf")); 
PLEASE HELP!!!!!

use:
import flash.events.ProgressEvent;
import flash.events.Event;
import flash.net.URLRequest;
myLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, onComplete);
myLoader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS , onProgress);
function onProgress(e:ProgressEvent):void
    var pct:Number = e.bytesLoaded / e.bytesTotal;
function onComplete(e:Event):void
    preloader_mc.X = -1000;
myLoader.load(new URLRequest("D.swf")); 

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