Lapinou you're pulling my leg right?
PM = Private Message sent from one user to an other, accessible from ones profile button ..
BTW, you're doing a great job with BW, keep it up. Comments (may it be bad or good) comes with the job, no reason getting furstrated and losing ones temper about it.
(edited a bit a post of yours in another thread - i am sure you would do it yourself anyways)