Sorry if i write in wrong place, i want to report a simple bug.
Plugin work correctly, but it delete needed files and give a warning in wp (PHP Single Sign On is almost ready. You have to Follow the instructions for it to work.).
wp - last version, prefix of tables are not original ones
phpbb - last version, same db, prefix of dbtables are not original ones
php single sign on - last version
When the plugin give all green "ok", the forum go down becouse there are no more the needed files.
The problem is that plugin when you click "install" on auth_wpbb.php and common.php then it delete them.
I have done as written in tutorial, but in the last time i have replaced this 2 files from plugindir/file/ after installed tham, now i have 2 error but now work everithing fine.
In my installation it resolve caused error as for example http://wordpress.org/support/topic/plugin-phpbb-single-sign-on-errors-with-auth_wpbbphp-and-commonphp