BuddyPress.org

Hi!
I’m currently struggling with a fresh install of WP (3.5.1) and BP (1.7.1).
I need a BP subsite with restricted access. I am trying to do so in a test site at http://casadimagens.com/lass.
So, forcing BP to live in a specific site

define(‘BP_ROOT_BLOG’, 2);

doesn’t seem to work because in the database I see a group of tables with the prefix

wp_2_

and when I try to network activate BP (the only option available, because I do not even see the option to do so in the site 2 panel where BP is supposed to live) it ignores those wp_2_ tables and creates a lot of new tables with the prefix

wp_bp_

instead.
So I guess this is something new (BP 1.7.1 new feature?) that invalidates the above feature

define(‘BP_ROOT_BLOG’, 2);

.
Am I right?
Many thanks in advance.
Cipriano