I ran into this a couple of years ago when trying to use the VZ-8plus2 with Elluminate. The only thing that worked was application sharing because Wolfvision didn't offer a driver for the camera to be used that way. I complained (nicely), and they were very receptive. They released a Windows driver in April 2010, and you can download it here (no Mac version so far as I know):
It would be fun to take credit for it, but I imagine they heard about it from other users as well.
Let us know if this works. By the time they released it we had moved on to other projects and I never got back to that.