Nothing but a Blank Screen/ TimerClass problem? EventListener?

Question

When I test the code below nothing happens. I just get a blank screen.
What is supposed to happen?
When the program opens a splash screen should be added for 3 seconds and then fade out. Then some main screen movie clips should be added to the stage.
package
    //**************** IMPORT STATMENTS *********************
    import flash.display.MovieClip;
    import com.greensock.TweenLite;
    import flash.utils.Timer;
    public class Main extends MovieClip
        //***************** Variables ***************************
       private var MainScene:Main = new Main();
        private var PopUp_MoreApps:MoreApps_mc = new MoreApps_mc();
        private var PopUp_About:About_mc = new About_mc();
        //*****SPLASH SCREEN ***
        private var mc_timerSplash:Timer;
        private var splashScreen:mcSplashScreen;
        //*****************CONSTRUCTOR CODE ********************************************************************* **************
        public function Main()
            mc_timerSplash = new Timer(3000,1);
            mc_timerSplash.addEventListener(TimerEvent.TIMER,  StartTimer);
            //When timer is finished stop the timer;
            mc_timerSplash.addEventListener(TimerEvent.TIMER_COMPLETE, timerCompleted);
            splashScreen = new mcSplashScreen();
            //Adds the splash screen
            addChild(splashScreen);
            splashScreen.x = stage.stageWidth / 2;
            splashScreen.y = stage.stageHeight / 2;
            mc_timerSplash.start();
        //*********** FUNCTIONS *********************************
        private function timerCompleted(e:TimerEvent):void
                mc_timerSplash.stop();
                mc_timerSplash = null;
        private function StartTimer(e:TimerEvent):void
            TweenLite.to(splashScreen, 1, {alpha:0, onComplete: SplashScreen});
        private function SplashScreen():void
            removeChild(splashScreen);
            addMainScene();
     //adds the main screen movieclips  
      private function addMainScene():void
            addChild(MainScene);
            MainScene.x = 489;
            MainScene.y = 350;
            //TweenLite.from(MainScene.wbbIntro_mc, .5, {alpha: 0});
            TweenLite.from(MainScene, 1, {alpha:0});
            TweenLite.to(MainScene.girls_mc, 1, {y:395, delay:.3});
            TweenLite.to(MainScene.boys_mc, .5, {y:396, delay: .6});
            TweenLite.to(MainScene.Joe_mc, .5, {y:339, delay: 1});
            TweenLite.to(MainScene.Paul_mc, .5, {y:322, delay:1.2});
        private function removeMainScene():void
            removeChild(MainScene);
            TweenLite.to(MainScene.girls_mc, .1, {y:690});
            TweenLite.to(MainScene.boys_mc, .1, {y:693});
            TweenLite.to(MainScene.Joe_mc, .1, {y:636});
            TweenLite.to(MainScene.Paul_mc, .1, {y:619});

Answer 1

then your problem is with Main.
what's your document class?  what's the class of your MainScene variable?   (and, those can't be the same.)