Try starting with this Supervisor FAQ (“Frequently Asked Question”).
Then, try testing. I had to move my repository from Sybase to Oracle, and I found that the LOVs and queries were “corrupted” on the Oracle repository. I posted a topic here asking for advice – and filed a case with tech support, who said that they do not “support” migration of a repository from one database platform to another.
So – I had to import all of my universes from the old repository, copy the LOVs to the correct folders for the new repository, open each universe and verify that each LOV was OK, and re-export the universe. Then I had to import all of the Corporate Documents from the old repository, open them with the new repository, and re-export them.
Since our users don’t use Broadcast Agent, and don’t have rights to send documents (via the repository) to each other, we didn’t have to worry about other sorts of documents.
Good luck!
Anita Craig 
(BOB member since 2002-06-17)