Get 'em while they last:
http://home.epix.net/~pkiesel/inventor/vex_parts.zip
There are just a few parts so far, but I'll put more up as I model them. They are in Inventor 10. And sorry, but I will not be creating versions with older revs of Inventor. Other caveats: the 60T gear isn't complete - I still have to do the curved slots, no guarantees on accuracy (let me know if you find errors).
My ISP is still living in the 90's (10 MB on their server) and there aren't many choices here in the wilds of upper Bucks, so this will only be up until the next time I need the disk space.