Flash sliding panels... how?

Hi, everyone.

I'm trying to replicate the functionality in this header:

http://www.drumpr.com/drumpr/asp/Home.asp

I'm an intermediate Flash 8 user. I've created a similar feature by jumping to different frames and storing relevant animation there. What I can't figure out is how to organize the sliding. When I float over panel #2, for example, how do I get panels 3, 4 and 5 to slide with it? And if the panel is already on the right side of the screen, how do I get panel 1 to slide left with it?

Any insight would be very helpful... thanks :)

zayd