The MOM agent or the MOM server does not start, and event 9029 is logged in Microsoft Operations Manager 2005

http://support.microsoft.com/default.aspx?scid=kb%3Ben-us%3B883347

I encountered this issue last week.

How to uninstall a Microsoft Operations Manager 2005 Management Pack

How to uninstall a Microsoft Operations Manager 2005 Management Pack

I've been asked before how to uninstall a MOM MP, here's the MS solution.

Install guide for MOM 2005 on SQL 2005

How to install Microsoft Operations Manager (MOM) 2005 Service Pack 1 databases and MOM 2005 Reporting on a computer that has Microsoft SQL Server 2005 installed

Good guide for installing MOM 2005 on SQL 2005. For reference, KB913812 and KB913801 only need to be installed on the MOM Management Server(s).