Language in system emails

Hello to the forum.

Just installed the script and it rules!

I have one question though. All the system e-mails i receive, and my clients too, are in French, How do i change this to English language?

NO one knows?

Hello I think someone really nice did it :

Will you try to implement it on your version ? (test on a 3.6 first, then on 3.5.4)