SQL Server 2005 versions

SQL Server 2005 SP2 - 9.0.3042

SQL Server 2005 SP2 with critical update - 9.0.3050

 http://www.microsoft.com/downloads/details.aspx?familyid=e2c358a1-ecc4-4c49-8f65-daa6b7800eec&displaylang=en

SQL Server 2005 SP3 - 9.0.4035

http://support.microsoft.com/kb/321185