BuddyPress.org

1. If I remember right, Jeff’s BP Privacy Options Plugin will allow the user to make profiles private. Just need to wait for the plugin upgrade for BP 1.2

2/3/5A. cosmic buddy theme – I would suggest asking Brajesh, the theme author about how to do that

5B. Yes you can create a Sitewide/global navigation bar in your blog’s themes, by using WPMU’s native switch_to_blog and restore_current_blog functions. Therefore, if you want the navbar of main site (blog_id_1) to be shown in you sub-blogs, you add the code below to your blog’s theme’s header.php

<ul id="nav"

<?php switch_to_blog('1') ?>

//copy the code from header.php of either bp-default/bp-sn-parent theme

//or the code used in main site plus any customized links you added in main site

<?php do_action( 'bp_nav_items' ); ?>

<?php restore_current_blog(); ?>

</ul>

You’ll get the correct URL’s which point to main site’s respective BP components.