A reference document, in Excel format.
http://www.microsoft.com/downloads/details.aspx?FamilyId=7821C32F-DA15-438D-8E48-45915CD2BC14&displaylang=en
Category: Group Policy
Group Policy Settings Reference
article #6, updated 6048 days ago
Turn off Security Center (reporting of firewall, antivirus, etc.) using group policy.
article #5, updated 6048 days ago
From here:
http://www.microsoft.com/technet/security/prodtech/windowsxp/adprtect.mspx#EDHAC
The GP item is under Computer Configuration, Administrative Templates, Windows Components, Security Center.
Apparently, updates to both server and client PCs have to be quite current.