WordPress MU

Hi!

I'm having a problem with setting up a private social networking site. The BuddyPress register page and the more privacy settings plugin don't work well together.

If I set the buddypress blog available to logged in users only, I cannot access the /register -page. This is an issue only with the buddypress theme and appears to be linked to this problem:

http://buddypress.org/forums/topic/wp-sigupphp-and-register#post-25253

The trouble is, that until that happens no-one can signup (register) to the site. I'd also like to use the secure invitations plugin:

http://wordpress.org/extend/plugins/wordpress-mu-secure-invites/

An ideal scenario is, that the only public page is the login page, and in addition the only page to access without logging in is the register page, which is invite only. The actual signup page should be inaccesible.

Any ideas? Hacks? Workarounds?

Just realized that this is probably because the /register page is somewhere under the buddypress plugin directory and the More Privacy Options never lets to enter that blog-specific directory; whereas wp-signup.php is in the document root.

How about Putting buddypress in the mu-plugins? All the blogs will be part of the social network and private anyway? What would break?

Would anything break if I soft-linked wp-signup to register? Would that work in the first place? And where is that register stuff in the first place?-)