I just remembered something else which might be helpful. We had the exact same thing happen last year when we had to re-install the Flash Player at work. It was supposedly some kind of problem with the installer not being able to function through the company's firewall, which I didn't have the access or permission to turn off or alter in any way. The only thing that worked was locating and using the full installer package.
So... does anyone know where I could get the full installer package for CS6 Production Premium?