I found a tele-quebec-xbmc project (thank's for the information). They have the same problem as me with the new site. They work on it and think they can come to end this month. I will continue on my side and check the progress of their work. Thank you again!if i can't figure how it's done, i try googling for the site, or the name of the server or something in combination with xbmc. If it's a reasonably popular site, chances are that somebody got it working on xbmc, so you can check their sourcecode and learn from it.
But as I understand, it's a recent change on that site? If so, then it's a case of luck if the xbmc team has figured it already