I'm preloading an swf, but it doesn't show

1

I’ve been told by another intern where I work, that I must package the game I’m making in an swf file and then preload it.
So I’m trying that but fail.
I have two issues:

  1. I use BitmapImages but don’t know anymore what to do with them. Is I preload the swf does that mean all images the game uses are automatically are preloaded as well?

  2. When I try to preload my own game, it doesn’t show up. Oh uhmm… I use flashdevelop so the preloader project has a Preloader class and a Main class. My game has a Main class as well.

Below is the code I use to preload my own game:


package 
{
    import flash.display.DisplayObject;
    import flash.display.MovieClip;
    import flash.events.Event;
    import flash.events.ProgressEvent;
    import flash.display.Loader;
    import flash.net.URLRequest;
    import flash.utils.getDefinitionByName;
    
    import nl.obg.www.*;
    
    public class Preloader extends EMovieClip {
        
        private var progressBar:Widget;
        private var preloadNames:Array;
        private var preloadTextId:uint;
        private var loader:Loader;
        private var loader2:Loader;
        
        public function Preloader() {
            initLoader();
            addProgressBar();
        }
        
        private function initLoader():void {
            loader = new Loader();
            loader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, progress);
            loader.contentLoaderInfo.addEventListener(Event.COMPLETE, startup);
            loader.load(new URLRequest("Game.swf"));
        }
        
        private function progress(e:Event):void {
            var perc:Number = e.target.bytesLoaded / e.target.bytesTotal;
            progressBar.editText("progress", "LOADING: " + Math.ceil(perc * 100).toString() + "%");
        }
        
        private function addProgressBar():void {
            var midW:uint = this.width / 2;
            var midH:uint = this.height / 2;
            progressBar = new Widget();
            progressBar.center(midW, midH);
            
            progressBar.addCenterText("main","Waiting to preload...", 16);
            progressBar.addCenterText("progress", " ", 16);
            
            addChild(progressBar);
        }
        
        private function startup(e:Event):void {
            // hide loader
            stop();
            loader.contentLoaderInfo.removeEventListener(ProgressEvent.PROGRESS, progress);
            loader.contentLoaderInfo.removeEventListener(Event.COMPLETE, startup);
            removeItem(progressBar);
            progressBar = null;
            var mainClass:Class = getDefinitionByName("Main") as Class;
            var main:Main = new mainClass() as Main; 
            main.addChild(loader);
            addChild(main);
        }
    }
}