I found this post on gizmo freeware to get a free copy of Geswall.
The offer will be available for a three day period starting from 2.00 PM Pacific Standard Time, Thursday 10 December and ending at 2.00 PM Sunday 12 December.
The program being offered has identical features to the latest $29.95 version 2.56 of DefenseWall except that it comes without support or free upgrades. However it can upgraded to the latest, full version 2.x release for $10.95 at any time before April 12, 2010. It can also be upgraded to the upcoming version 3 of DefenseWall with inbuilt firewall for $20.95.
Sorry wrong forum, can a mod please move it to the correct forum.