When I tried to run the installation program you linked, the system said it was not compatible with Windows 7.
Have you tried to install it manually?
Go to Device Manager
Rightclick on the "PCI Simple Communications controller"
Choose Update Driver Software.
Browse my Computer for driver software - browse to the directory where you have extracted the downloaded driver.
I did it last time on a test machine.
I can see there are other users trying to do that, may be you can check with them as well.
All the best,