Tweener Resizes Mask but does not animate it

1

First let me say that I am just starting out in AS3 so this may be a simple problem that I am having due to my lack of experience.

Goal: I have a mask over a mc that holds video being streamed in. This mask is set to show only a portion of the video and when the user mouses over the mask I want it to expand to show the whole movie. When the user mouses off the mask I want it to re-size back to its original size.

Problem: The second time the mouse is over the mask, it does get tweened to the larger size, but you do NOT see the animation occur. It just blinks in.

Code:
I have included everything but my video class and grid class. For this I have turned off my grid. BTW this my FLA file includes this class. I have this feeding from an xml file, i removed that code. I also have 2 other movies that will function the same as movie1 but I have removed that code. Once I get movie1 working it should be fine for movies 2 and 3.


import caurina.transitions.Tweener;
import flash.utils.Timer;

var imgSprite:Sprite=new Sprite();
var v:simpleFLV = new simpleFLV();        
var movie1Mask:movieHolderMask_MC = new movieHolderMask_MC();
var movie2Mask:movieHolderMask_MC = new movieHolderMask_MC();
var movie3Mask:movieHolderMask_MC = new movieHolderMask_MC();
var movie1OrigW:int = movie1.width;
var movie1OrigH:int = movie1.height;
var movie1URL:String;
var movie2URL:String;
var movie3URL:String;
var movieIsShowing:Boolean = false;

//add our bg image to the very bottom
addChildAt(imgSprite,0);

//mask for movie1
addChild(movie1Mask);
movie1.mask = movie1Mask;
movie1Mask.buttonMode = true;

//event for movie1
movie1.mask.addEventListener(MouseEvent.MOUSE_OVER, movie1Over);

function movie1Over(e:MouseEvent):void {    
    if(!movieIsShowing) {
        movieIsShowing = true;
        movie1.removeEventListener(MouseEvent.MOUSE_OVER, movie1Over);
        if(movie1.getChildByName('video1')) {
            trace('existing v1');
            v.Seek(0);
        } else {
            trace('new v1');            
            movie1.addChild(v);
            v.name = 'video1';
        }
        trace(movie1.mask.width);
        Tweener.addTween(movie1.mask, {width:220,height:160,time:1, onComplete:function(){                        
            v._w = movie1OrigW;
            v._h = movie1OrigH;
            v.Play(movie1URL); //feed in from xml       
            //not sure why playing video will cause movie1 to increase in size...
            movie1.width = movie1OrigW;
            movie1.height = movie1OrigH;
            movie1.mask.addEventListener(MouseEvent.MOUSE_OUT, movie1Out);
            trace(movie1.mask.width);
            }
        })
    }
}

function movie1Out(e:MouseEvent):void {
    trace('out');
    if(mouseX == 1 || mouseX > (movie1.width - 5) || mouseY > (movie1.height - 5)) {
        v.Pause();
        Tweener.addTween(movie1Mask, {width:110,height:80,time:1,onComplete:function(){                                                                                                                                        
            movie1.removeChild(movie1.getChildByName('video1'));                                                                                              
            movie1.width = 110;
            movie1.height = 80;            
            movie1.mask.addEventListener(MouseEvent.MOUSE_OVER, movie1Over);
            //movie1Mask.removeEventListener(MouseEvent.MOUSE_OUT, movie1Out);        
            movieIsShowing = false;
            v.Dispose();
            //v.Seek(0);
            //v._video.clear();
            //v._video = null;
        }});                
    }
}

If I am going about this the wrong way, please let me know what a better way of doing this is.

Thanks,

Albert