When I originally installed the program with the regular installer I updated the program to 10.8 and I received a blue screen in the capture area. So, I read up and found out that with my version(10.5.2) I have to install using the vista installer. So I downloaded the vista installer and now when I try to run the vista installer it won't accept my serial number. So I looked up info in the forums and I have used the regdelete. Please help....thank you.

The bluescreen crash in the capture tab has been isolated to an incompatible Dazzle driver. You don't need the Vista Installer, I'm guessing that you're using the the Studio Quickstart. Redo the installation steps you did to install it before and read this thread to fix the BSOD in the capture tab.