Dissolving bitmaps

I have a stack of bitmaps sized the same. I want each to display for ten seconds before "dissolving" via motion tween to reveal the one under (behind) it and so on. Can anyone get me started?

Thanks!

Um, i'm not much of a designer but i'm guessing you could do down two routes.

Firstly (and most simply) change the alpha attributes, which will give more of a fade then a tween.

Secondally (and more complex) create a mask which disloves in and out.. every 10 seconds disolve out, swap image, and disolve in.

to do the second you'd need to make a movie clip with your dissovling tween(s).

Then use actionscript in the main movie to hold on for 10 then swap images.

Hope that helps a bit.
*mt