I'm just gonna say, even though I ain't myself using phpBB (as I think it lacks many good features), update it to 2.0.19. I placed a copy of phpBB 2.0.18 on here to test out a few things on, and was able to hack myself with a XSS attack - allowing me to gain access to my username and password remotely (meaning other people can too without you knowing). The link to the update is below. And remember be safe!
? phpBB Downloads