BuddyPress.org

However, you can use it on WPMU hosted blogs. You just have to change the login link on your hosted blog to go to the main site\’s login page. Essentially you would have to do something similar for the BP login bar on the default theme. Offhand I am not sure if you need to use a redirect but I think you could just copy the special login form from the main site\’s login.

I decided against using this plugin on y site as the code is immature and doesn\’t santize variables properly. Doable for any half way competent programmer, or you can pay me some money.

(sorry for two posts, writing this on iPhone and didn’t want to loose any.)