BO?
Well, you could download the english translations from
http://www.bigace.de/public/snapshot/en_2.6.zipand also take the attached french package. Install both in your bigace.
Then copy all files from english
/sytem/language/en/ to french
/sytem/language/fr/.
Start translating the french files. After a while (when you are done or even in between) ZIP the folder
/system/language/fr/ and re-attach it here in the forum, so I can make it available to everyone else.
Hope that helps. Sorry, my explanation are probably to short, thats because I am working with bigace for years now... So if you have any more questions, don't hesitate to post!!!!
Kevin