You need to run createdb to create the requisite entries in the master database on the SQL server.
Read these:
KB12247 - How to move from an MSDE database to a Microsoft SQL Server database
and
KB03112 - How to move the BlackBerry Configuration Database to a new Microsoft SQL Server or instance
And then print them out and follow the instructions step-by-step. Not doing this will most likely end up causing you problems ... I've done hundreds of these and I still print out the steps to make sure I don't miss anything.