I downloaded Tor for Vista but when I click it the hourglass comes up for a moment and then goes away without opening the program. Any ideas on how to open it?
Right Click installer>Properties>General>Unblock
If your Vista is anything like mine windows has blocked the installer out of "fears" that it might be unsafe.
I just had the same problem and facepalmed when I realised it was so simple.
This could be your problem or it might not.
For some reason windows vista blocks installers like Tor and Utorrent. All you need to do is right click it. Select "Properties"--> "Unblock" at the bottom right-->"apply"-->"okay" Then you can run it!