WSUS SP1 upgrade issues

If you, like me, have had or are having problems with WSUS SP1 upgrade and MSDE databases that have been migrated to SQL, then look at the article named Known problems when you upgrade to Windows Software Update Services (WSUS) Service Pack 1

• Proxy server user name and password settings are reset
• WSUS SP1 does not update WSUS servers that are set up using remote SQL deployments
• Computer name changes after you install the original release version of WSUS and before you install WSUS SP1
• WSUS SP1 upgrade may fail when the Microsoft SQL Server 2000 Desktop Engine (Windows) (MSDE) database has been migrated to a local SQL Server 2000 computer
• WSUS SP1 upgrade may fail when the MSDE database has been migrated to a remote SQL Server 2000 computer
• WSUS database is in an inconsistent state after a failed upgrade