On (press) won't gotoAndPlay in other MC

I have a command inside an onpress, that doesn’t do what it’s supposed to.
It is written like this:
Code:
[LEFT]on (press) { _root.window.gotoAndPlay(10); _root.imageOne.imageTween.gotoAndPlay(2);}[/LEFT]

The above actionscript is on a button, and that button is located at:
_root.messageOne.messageGraphic

The imageTween frame 2 is the beginning of a tween that scales that movie clip, but it just sits there and doesn’t scale. So the on (press) isn’t working for some reason. Any ideas?