You're not going to fix this problem, as the mediaDB and volDB on the media server is referencing teebox, and not the new master server.
So you have to import the tapes with backups on into the new master server, or, if you can, rehook the media server back up to teebox and do a "bpmedia -movedb..." to move the media off the media server onto another server associated with teebox, and then start afresh with the new master server.
Right now your volDB and mediaDB on the media server hold data from teebox, and the new master server knows nothing about these tapes...
Try running a database consistency chcek....