MC scale on RESIZE

Question

I am currently working on a swf (call it swf_A) that will eventually be loaded into another swf (call it swf_B) and have a few questions about resizing movie clips with the RESIZE event.
Here is my code this for swf_A:
public class swf_A extends MovieClip
          public function swf_A()
               stage.dispatchEvent(new Event(Event.RESIZE));
               stage.addEventListener(Event.RESIZE, updateSize);
          private function updateSize(event:Event):void
               doorsMC.width = stageWidth;
               doorsMC.height = stageHeight;
This is resizing my Movie Clip, however when I drag the flash player to make it bigger, it seems that it is scaling from the bottom right of the player.  I see the Stage, or white background in the top  and left of the player.  Any Ideas?
Second part is if I use a reference to the stage like doorsMC.width = stageWidth; and doorsMC.height = stageHeight;    will this break when I load it into swf_B?
Thanks guys,
[EDIT]:  Ok, seems I figured out my scaling problem, looks like i was missing import flash.display.StageAlign; and stage.align = StageAlign.TOP_LEFT;
Thanks again.

Answer 1

OK, I have reworked my files a little, I did find out that loading a swf into another does break it when using a strait reference to the stage...... stage.dispatchEvent(new Event(Event.RESIZE));. So, What I have going on is a situation where I will have a parent swf that children swf will be loaded into.  Some have to be scaled while other need to remain a constant size and centered.
I originaly had the following code in my Parent swf:
//in the constructor
stage.align=StageAlign.TOP_LEFT; //Specifies where the contents in the stage are aligned from
stage.scaleMode=StageScaleMode.NO_SCALE; //Stops the contents of the swf from scaling
stage.dispatchEvent(new Event(Event.RESIZE)) //Dispatch an event everytime the screen(browswer/swf) is resized./stage.addEventListener(Event.RESIZE, updateSize); //Listens for the event just dispatched
//outside the constructor
private function updateSize(event:Event):void
               //center content
               _currentBoard.x = stage.stageWidth/2 - _currentBoard.width/2;
               _currentBoard.height = stage.stageHeight/2 - _currentBoard.height/2;
This worked great, untill I have to import a swf that does need to be scaled, So my thinking was, remove this from the Parent swf and pace what is needed in the constructor of each child swf document class.  This does not seem to work.
Inside of one of my children swf, I now have the following:
package
     import flash.display.Sprite;
     import flash.display.Stage;
     import flash.display.StageAlign;
     import flash.events.Event;
     public class Directory extends Sprite
          public function Directory()
               if (stage){
                    onAddedToStage();
               } else {
                    addEventListener(Event.ADDED_TO_STAGE, onAddedToStage);
          private function onAddedToStage(event:Event=null):void
               removeEventListener(Event.ADDED_TO_STAGE, onAddedToStage);
               stage.align = StageAlign.TOP_LEFT;
               stage.scaleMode=StageScaleMode.NO_SCALE; //Stops the contents of the swf from scaling
               stage.dispatchEvent(new Event(Event.RESIZE)) //Dispatch an event everytime the screen(browswer/swf) is resized.
               stage.addEventListener(Event.RESIZE, updateSize); //Listens for the event just dispatched
          private function updateSize(event:Event):void
               this.x = stage.stageWidth/2 - this.width/2;
               this.height = stage.stageHeight/2 - this.height/2;
This is not working, as it still scales the contents of the flash player (my child swf) when I resize it.  Also when I run just the child swf, I get an error 1120: Access of undefined property StageScaleMode.
Thank, I appreciate any help.