Unfortunately we only have partial translation for French, someone started work on it but never completed it. If you would like to update the French resource files you can send them to me and I will include them in the next version. For anything where there are missing keys in the French resources it will fall back to English, so the problem is incomplete .resx files for French. You could update the .fr.resx files using Visual Studio and then zip them and email to me at joe dot audette at g mail dotcom
http://www.mojoportal.com/translatingmojoportal.aspx
Best,
Joe