using bbpress .8.3 I can view my main page (http://www.healthstatus.com/health_blog/forums), I can view a latest discussion by clicking on it, but when I click on a forum, I get the message:
Fatal error: Call to undefined function bb_get_header() in /...../forums/forum.php on line 1
Second, when I try and add a forum (from the admin screen) it just flashes at me but doesn't add the new forum.