pointless imho, what you did is just to change the spell names, and it seems to remain buggy. If you want to use the client with french support, you ll have to do what Kathgar suggested : download the source, translate the texts to french and have a dev tell you (and i) how to pass thru the login page. After that, you ll still have to translate the database, and the quests, 30000+ items, as many mobs, loottables, lootdrops, books, etc etc... and obviously, have to deal with the multiple database upgrades that you ll want to use (make a diff with your own db, translate it, source it...)
honestly, i don't know if it worth it, for me it doesn't at least :)

anyway, good luck, you gonna need it )

M.

Even if you have a complete database and don't maintain a french version of a database that is changing, you're looking at hundreds or thousands of hours to translate everything.

or you could just make a french item collector instead of translating everything...