I installed those 3rd party themes for Windows 7, like Snow Leopard and then I downloaded the Windows 7 SP1 RC and after installing it, all the 3rd party themes are not loading properly. They are just loading like Windows 98 or 2000. But the themes that I downloaded from Microsoft are working properly.
Secondly, when I uninstalled the Win 7 SP1 RC, there was no windows restore dates available. What should I do?