1) Create an accountClic on "s'enregistrer" and add your informations (pass/mail/loggin name)
2) Join a groupYou have now acces to forum but not to all the forum. Your profil is not yet in a group. It's why your nickname is not in a color of a group
At this point, you have to join the group of your society.
To join it, it's easy.
Clic on "groupe" in the menu.
Clic on yoru society
Clic on r "Rejoindre le groupe"
The group leader has now recieve an emali from the forum asking him to have a look on your request.
When he will have add you in the grop, you will get acces to all the forum.
If you get a problem just create a thread