Why not just perform a "Restore Database" on the target (source), database server?
I just performed a test, and it works.
I've always been very confused by that document (KB03112 - How to move the BlackBerry Configuration Database to a new Microsoft SQL Server or instance
To me, it's a bit hard to follow the bouncing ball and also seems to have you perform redundant tasks. For example, it has you create a schema, restore DB via command line and Detach DB, move *.mdf, *.ldf files, Attach DB.
Again, why not just 'Restore DB' via the GUI. It seems to cover it all.