http://dev.mysql.com/doc/refman/5.0/...nnections.html

http://th.php.net/manual/en/function.mysql-connect.php


http://codingforums.com/archive/index.php?t-7203.html


perhaps also this is a choice time to archive phpbb and install

http://www.simplemachines.org/

comes with my recommendation after quite a while being a phpbb2 admin myself. however havent tested or researched the "too many connections" issue at simple machines.