loading movie to fit the window

[kav40]

I have 3 swf movies. Let's say A,B,C. "A" has 2 buttons which load B or C to the bottom part of "A"'s window (one at a time). I know when loading a swf with a html file, it cal load as fit to window. But can I load B or C in the above exampel to the bottom window as "fit to window".
I mean if the screen res. get different, I want always the bottom loading movies to be fit to windows.
(B & C will load one at a time on to the bottom part within the movie A)