AS 2.0 - Fading Between Colors

Hi!
I know this question has been posed before, and answered ad nauseum, but I’ve had no luck with a basic actionscripted fade between colors. So what I’m looking for is a rollover effect, where let’s say a red button fades to white over the course of say 2 seconds, and then fades back to its original color on a rollout.
Could someone please oh please help me out?
I’ll be forever indebted to you.
Thanks!

Steve