Hi!!
Well, maybe it's too late to answer but I don't know that French school. However, I know a French organization NACEL which organize linguistic stays in France and in other countries. I'm Spanish and I made a trip there last year, it was fabulous!!I stayed 2 weeks there and we both learnt French and French cook! I made typical foods like 'cassoulet', ''quenelles'...It was quite proud of my progress in these 2 fields!
I checked and found the link on their website
http://http://www.nacel.org/cd/Language-Schools/France.php
Good luck et bon voyage, vous ne le regretterez pas!