Ops Database Install error - Code 2147221164 (class not registered)

When I try to install the MOM database on the SQL, I get the following error.
There might be something to register which I am missing. I tried to
regsvr32 the oledb32.dll but no luck..
Also this error is due to sql and not scom...so am posting in sql section
any help on this?

CreateDatabase: Custom Action Data. MOMXDB XVMCAMOPSDBEU01 OperationsManager
1 1000 C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\Data\ C:\Program
Files\Microsoft SQL Server\MSSQL.1\MSSQL\LogConnectDatabase: CoCreateInstance
failed to create CLSID_SQLOLEDB object. Error Code: 0x80040154.
CreateDatabase: ConnectDatabase returned error. Error Code: 0x80040154.
Error 25156.Failed to create MOM database. Error Code: -2147221164 (Class
not registered).
MSI (s) (90!24) [14:45:41:300]: Product: System Center Operations Manager
2007 — Error 25156.Failed to create MOM database. Error Code: -2147221164
(Class not registered).

serious? No one?

I posted this like since two weeks in the system ops forum...no reply there..
no reply here..
guess either no one knows an answer to this.. or MS MVP's are way too busy..