Before I purchased Internet Max, I wanted to make sure I could use the internet at all... Didn't work automatically, so I tried orange.fr as access point as mentioned earlier; no go. Searched on web and found following:
MXit Forum • View topic - APN (Access Point Name) Settings
Basically, for Orange personal, access point is just "orange". Web site says orange for username and password as well; that worked for me.
Happy surfing all!