All versions up to .91 were released as freeware. Try freewareppc.com:
http://www.freewareppc.com/communica...firouter.shtml
[Edit: well the freewareppc site apparently just links to the official WMWiFiRouter site now, so that's useless. But a quick google search yields plenty of other options:
http://www.phonenews.com/where-in-th...firouter-2763/]
Or you can use another tool released by lysdexical at XDA that has more capabilities, but is a little less user friendly IMO.
http://forum.xda-developers.com/showthread.php?t=377047