Beetleguise
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5.5.2710 (Jan 16, 2009)
Very good firewall, easy to configure, if you can't figure it out it's still easy because of the pop up windows asking your permission and how to handle connections if temporary or permanent.
Sygate was bought out by Norton/Symantec and is no longer being developed, however there was very little changes with each version, you can now get the latest Sygate Personal Firewall Pro v 5.6 for free, just google and look on all those download sites like tucows, cnet, download.com and more.
All you need in a firewall without the extra crapification to slow you down. of course like most firewall it may drive you batty while you train it.