Thanks for the resources everyone. I checked out the Northwestern classes and while they don't work for us, it did lead me to "The Gamemaker's Apprentice" which is one of the books Lucounu found. So, that will be a Christmas gift. We did try Kodu but had lots of problems with the download and freezing up, so hopefully the program that comes with Gamemaker's Apprentice will run a bit more smoothly (I'm not enough of a techie to trouble shoot that sort of thing).

Thanks again, Cat