Ok, so it seems the folk in New Caledonia are a little slow to respond via email. The dont have a great web presence either, but suffice to say the guy I flew with was great. If you want to fly there, send an email and ask for Robin Jussan. His English is perfect, and he is a great instructor too.
The ATC at magenta and tontouta speak french for the best part, but they can speak English also.
BTW, if you want to get in contact with them, the best way is to use the telephone. I will be happy to provide Robins email and phone number if needed, but only via PM.