In our company we have the following situation:
A flash movies ("slide") which loads upon startup another movie
("controller").
The controller interacts with the slide and provides trivial functions
such as "play", "stop" etc'.

The controller should "always" be placed at the footer of the slide,
regardless the screen resolution or resizing of the browser.

Any ideas how to achieve this effect?

I got it worked out:

Stage.align = 'B';