SP2 has changed, make sure you download the latest file
A regression bug was introduced in SP2 that resulted in a
view problems when used in evironments that had other versions of SQL 2005 i.e.
RTM and SP1.
The SP2 download has been changed to include this hotfix.
http://www.microsoft.com/technet/prodtechnol/sql/2005/downloads/servicepacks/sp2.mspx
The change is mentioned in this blog post,
http://blogs.msdn.com/sqlrem/archive/2007/02/24/Maintenance-Plan-Changes-in-SQL-Server-2005-SP2.aspx
which jasper pointed out here
http://sqlblogcasts.com/blogs/sqldbatips/archive/2007/02/24/maintenance-plan-changes-in-sql-server-2005-sp2.aspx
-