If you're running a TMG firewall, you might have noticed that the update fails when you try to install the SQL Server 2005 SP2 update (KB948109). The problem was that the TMG SQL Reporting Web site installed on the TMG firewall isn't listening on the default port and that confused the installer. The good news is that there is a new update, KB954606, which fixes this problem.
For more information, check out the Forefront TMG firewall Team Blog at:
Thomas W Shinder, M.D., MCSE
Sr. Consultant / Technical Writer