My team has made edits / updates to some of our guides:
Security Risk Management Guide v1.2 March 16, 2006
The Microsoft Windows NT 4.0 and Windows 98 Threat Mitigation Guide v1.1 March 30, 2006.
Windows XP Security Guide v2.2 April 10, 2006.
Windows Sever 2003 Security Guide v2.1 April 26, 2006.