addChild problems

programming flash
1

I have just started learning AS3.0 but I used AS2.0 for a while.

I am just trying to add movie clips from the library and the script I have in the function works fine on the time line but when I put it the class it no longer works or at least I dont think it gets added to the display list but it doesnt show.

Here is my code I think it could be to do with the classes imported at the top of the class.

 
package com{
 import flash.display.MovieClip;
 import flash.display.Sprite;
 import flash.events.*;
 import flash.display.*;
 import flash.text.TextField;
 import flash.net.*;
 public class gallery extends MovieClip {
  //public var gfx:Stephen = new Stephen();
  
  public function gallery(mainArray) {
   Main();
   init(mainArray);
  }
  public function init(mainArray) {
   createFirstLevelMenu(mainArray);
  }//
  public function Main() {
  
  
  var test:Test = new Test();
  addChild(test);
  
  }

  public function createFirstLevelMenu(mainArray) {
   var container:MovieClip = new MovieClip();
   addChild(container);
   var gfx:Stephen=new Stephen(); //Stephen is a symbol in the library and has the same instance name
   container.addChild(gfx);
   trace(this.numChildren);//traces 1
  }
 }

it definitely calls the class and the function.

I am completely stuck any help would be appreciated.

Many thanks

Stephen