If you do/did the Portable Video course with Frank Guttler, you'll be familiar with Photostory. it's the free Microsoft program that adds Ken Burns effects to simple slide shows.
Wow Slider enables kids to create stunning visual Java slide presentations for their blogs, wikis, or websites. The download is free for personal and educational (non-commercial use). They've added interesting transitions and the Ken Burns pan and scan effect as well.
I was able to follow the how-t0 explanation down to the part where it says how to post, but I think that after I try it a couple of times, I should be able to figure that out.