You can't accomplish what you want going about the way you are now. You will
have to create each different thing you want to be able to change to it's ow
n
.swf. Then using frames in html, make it so that each movie is in a differe
nt
html file, that is displayed in the frame. Then in the buttons .fla link the
buttons to the html file and reference the frame. I hope that made sense.

This used to be avaliable, has it been removed?  Or am I just thinking
of the ability to communicate between director movies?