Antoine,

A couple of URL's that might help to find GT Forums:

The GT-Forum Main Index page.
http://www.gossamer-threads.com/perl/gforum/gforum.cgi?

The private message feature of GT-Forums.
http://www.gossamer-threads.com/....cgi?do=message_list:

The Edit Profile feature of GT-Forums.
http://www.gossamer-threads.com/....cgi?do=user_profile;

The Who's Online feature of GT-Forums.
http://www.gossamer-threads.com/...m.cgi?do=whos_online;

The product page for GT-Forum.
http://www.gossamer-threads.com/...pts/gforum/index.htm

And finally, the product features page for GT-Forums.
http://www.gossamer-threads.com/.../gforum/features.htm