Connecting to SQL Server 2005 (and Express) has one slight difference in how you point to the sql server. In previous versions you would say the server's ip or name when requested (i.e. localhost or (local)) but it 2005, you need to put the server and the sqlserver (i.e. localhost/sqlserver) In Sql Server 2005 Express, point to it using ".\sqlexpress" Although i didn't quite understand what you are trying to do, or how, i hope this helped.
Ericos Georgiades