Sorry, but there is no French version of the Vyzex software editor that I'm aware of. You may not have known this, but the Pocket POD Vyzex editor program was written by PSIcraft http://www.psicraft.com/index.php software (thank you, Tony!). PSIcraft authors other MIDI-based software editors for other hardware devices from other manufacturers.

To the best of my knowledge (I may be wrong), Pocket POD Vyzex is only available in an "English" version and the Tutorial is as such.