Hi Dennis (@GIGALinux). You write that the Private Buddypress plugin works with your Invitation Code Checker plugin, but I can't seem to get this to work. I'm using WP 3.1 and BP 1.2.8 and your latest versions of the plugins.
I installed Invitation Code Checker but nothing seems changed. I cannot find a 'Invitation Code' setting and registrations are all approved automatically. Am I missing something?