I have no idea and given the lack of information there I doubt anyone else will be able to help either.
What O/S? What happens when you try?
When I downloaded it I was never given the chance to save it, only the option click 'run' or cancel. And after all the install wizards were through and I restarted the computer nothing happened. There was a folder on my desktop with a ton of files in it but none were the program. I have Windows Vista on my PC.
Did it run an installer, or simply unpack the zip file. Do you see a setup.exe file in that folder?