1.7.5 Download Problem

So I bought a commercial license for TGB in 2008. Since then all of the downloads have not required a product key. That is until now. I downloaded and installed TGB 1.7.5 hoping that it would resolve the setSpeed path error. When I started it I updated the project I was working on to 1.7.5. It came up with the demo version logo in the corner. The info page has a section for entering a product key. Problem is I don't have one and have never needed one until now. The other problem is I cannot revert my project back to the previous version.

I have seen other threads where people had this issue and had it resolved by Torque. I sent a message on the contact page but have received no reply. I cannot find any other contact information. If somebody could help it would be great. Thanks-

Zach Sundberg