Need Simple Button Help

I have a flash movie with buttons which execute “gotoAndPlay” and then a specific frame set. These frame sets are governed by “stop” commands so they do not repeat. I wish to have some buttons disabled until others are clicked. How would i do this? Is this an example of Boolean logic? Should i use the “if” scenerio and if so then how? Please help…

In additon I also wish to have a variable scenerio where the number of times someone rolls over my button changes which frames are played… I can give more details if needed and will check back frequently for your response for a little bit, Thank you.

Sincerely

FlashNoob84:link: