Resize MovieClip with Image content!!!

Hello,

i have a movieclip and then "inside" i have as image. The problem is that i want to resize it and i can't!

Here's the code:

var ImageClass:Class = getDefinitionByName("image") as Class;

var image:Bitmap = new Bitmap(new ImageClass(100,100));

    mcImage.height=100;

    mcImage.width=100;               

    mcImage.scaleY=mcImageLeft2.scaleX;

    mcImage.addChild(image); // add image to MovieClip

    addChild(mcImage); // add MovieClip to Stage

Can anyon help?

Thanks