I found this camera just a few weeks ago. The guy who sells them appears to have helped design the SAC 10 and the Orion StarShoot Deep Sky imager.
Here's his website
http://qhy.lamost.org/3megaccd/
Personally I would email him and he will produce a ton of info on the cameras that he has made. He has a usb 1.1 camera that is similar to that camera called QHY 2 and you can choose the type of CCD chip.
Chris