Database changes?

[jmc]

Been a long time since I've been in here, but I've got a quick question (and can't find a relevant answer with Search).
I'm helping to fix a site for someone who got crashed a few days ago (seemingly by the sql injection hack?). Anyway, his entire Joomla/CPG setup was trashed. We got the Joomla side up-and-running without too much difficulty, but as a result of the server refusing to delete/over-write certain CPG folders/files (bridge/eblah, for example), he got his Host to delete the entire Gallery folder and ran a clean install. As a result, his db now contains all of the new cpg14x tables, BUT also contains a mixture of cpg11d and cpg143 tables (and these contain all of the album/user info, obviously).
So - has there been any db table changes which would be show-stoppers? Or would we be safe to simply re-name the existing 11d/143 tables to 14x?
Anyone? 
Thanks for any help.
John Mc

[Nibbler]

update.php will make any necessary database changes; that's what it's there for.