Microsoft has released an updated SQL Server 2005 SP2 update on March 5th. A minor change in the build number (to 9.00.3042.01 from SP2’s 9.00.3042.00)
This corrects an issue with maintenance plans not treating days correctly.
More information, downloads and so on can be found here:SQL Server 2005 SP2 page.
Thanks to SQLTeam.com for the heads up!