Here is the update history -> -http://www.threatfire.com/updates/
Scroll to the bottom to see the last update. Version 4.7 on November 25, 2009.
One of my favorite programs is WinPatrol +. It takes a snapshot of your system and alerts you if anything changes.
If there are any changes to your startup, services, BHO, activeX, etc. WinPatrol asks what to do.
Here are the differences between WinPatrol free and WinPatrol plus. -> -http://www.winpatrol.com/whyplus.html