Installed it just now with the latest WP version.
I tried activating but I'm getting a fatal error as below:
Fatal error: Call to a member function session_begin() on a non-object in [myPathHere]/forums/includes/functions.php on line 3814
I have phpBB3 integrated through the WP-United plugin and it's installed in that path (domain.com/forums/). Can this conflict be fixed or should I look for other options? :(