wow, that's a difficult one to answer (at least for me it is!) I would think you would need a different program to do that -- although not sure! The program I am thinking of is called "Morph SE" by broderbund. You can take 2 or more photos, and have each one morph into the next one!! I think the $ on that one is about $30 - $50! There are 2 versions, Regular, and Pro (hance the price range)!
Other than that, I'd wait to hear from Mark or one of the more experienced members tell you how (if possible) to do it! [righton]