Movie playing backwards and more

Hi there…
I’ve been trying to come out with something but i can’t seem to spill out any progress in this.

I have an empty movie clip which is loaded with main.swf
When i click on a btn ( in menu ), the movie will play backwards till frame 1 and unload then load a new swf.
This would go the same with my other btns in the menu…
HELP!

Thanks.