Sygate Personal Firewall is can be safely downloaded from Tucows:
http://www.tucows.com/preview/213160.html

For detailed information on how to install it, go to the site below. However, I strongly recommend that you avoid using the download option provided at the top of the Sygate installation instructions (use the Tucows link above instead):
http://smb.sygate.com/support/documents/spf/default.htm

As of late 2004, the Sygate download link takes you into a randomized selector that usually tosses you into the kind of download site you should avoid if you want to get rid of spyware (e.g., the ones with flashy ads for gambling sites). The use of such sites makes the downloads themselves suspect, and going to them can result in you inadvertantly clicking on links that load spyware into your computer. Assuming that this is intentional and not some kind of site hijacking (of the home pages of a company that provides security products!?), it is really quite sad that Sygate marketing has chosen to capitalize on one of its best and community-oriented products in such a risky and self-contradictory fashion.