Thanks for adding a post in this thread.
This seems like a user specific issue. I'd recommend you to send us an email with your user ID and email to: email@example.com We'll be contacting you shortly afterwards to get this resolved.
I have the same problem, I can log in to the help center, talend.com, but I can't get the talendforge forum to see me as registered. I'll send email to the same address, just mentioning it here in case there are others.
Fatal error: Call to a member function check() on a non-object in /home/www/talendforge.org/forum/post.php on line 122