Broken phpbb forum / phpnuke

Hello everybody. For one year I have been wanting to solve a problem with my phpnuke phpbb forum. The problem is that anonimous can´t post in any active forum. More exactly, it appears a fatal message like that: ***************************************** Error in posting DEBUG MODE SQL Error : 1064 You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near ' 1091140325, 2, 0, 0, 0)' at line 1 INSERT INTO nuke_bbtopics (topic_title, topic_poster, topic_time, forum_id, topic_status, topic_type, topic_vote) VALUES ('aaaaaaaaaaaaa', , 1091140325, 2, 0, 0, 0) Line : 297 File : /data/members/paid/v/a/[login to view URL] ********************************************* I´m a simple user of that kind of dimamic web pages... And don´t have enough knowledge. But i have upload this "functions_post.php" file (if it´s neccesary). I´ts a small proyect, i think. ¡¡Thank you!! Javier de Juan