PPT will play flash, it's just a bit more involved of a process than inserting a .wmv, or .avi, etc.

This link worked great for me.

http://www.sameshow.com/other/insert...oint-2007.html

I've had problems with the flash not showing, but it usually boils down to the path where the flash movie is located was wrong. While PPT may embed the pictures and videos (to an extent), you need to specifically tell it where the flash movies are located.

hth