MP MU: How to create an individual BuddyPress for each sub site?

WPMU: How to create an individual BuddyPress for each sub site?

Right now, it seems once I install BuddyPress on a WPMU site, it will appear on the main site.

How can I set up to allow each sub site in WP MU all have their own buddypress? so each sub site's users will not see other sub site's users activity/groups.

Just like http://www.ning.com/ does - people can create stand alone social networks.

Thanks :slight_smile: