If you have the time, and if you are familiar with Adobe Flash, then there’s this way of doing the PowerPoint to Flash conversion–that’s doing it manually! This approach lets you tweak, change, and edit the content as you deem fit. There’s tons of stuff you can do with any slide object within the Adobe Flash interface, and this is not really a tutorial on how to go into any such advanced stuff. However this tutorial on Indezine.com will get you started!