I finally installed Crafty Syntax Live Help on my production server. This package is used to provide a way to support people on your web site directly, with a chat session. I've known this program for a while, but I didn't want to install it untill I had time to translate it in french. Yes, my mother tongue is french. I've worked 3 days on the translation this week and I expect it to be finished before the end of next week. I suggest you try it and send a donation (or help me with the translation!).