I re-created the VKoP 12 in. Wheel in Inventor 7 for you all. You can download it
here. (
http://www.cybersonics.org/cybersonics/12inWheel.ipt)
The model is not entirely accurate - I just copied the FIRST VKoP model. It is missing the schrader valve and the holes in the wheel are not the right shape.
I'm planning to go through the other Inventor 8 files and "translate" the ones we're using this week. FYI, translation in this case means opening the file in Inventor 8 and re-creating it step-by step in Inventor 7.