Need help for random motion

Hi there, could someone help me?
I retrive this fla from web, where there are 3 mc floating with random motion( easing included) across the stage.
Please, I need to have 3 different “ball_mc” on the stage. Every ball has to be a button with rollover state that, on release, go on a certain point of timeline with the “gotoAndStop” method.

I use As2. Please, could someone help me? Thanks a lot.