I'm liking this plugin, it's the first one of its kind for BuddyPress. Thanks!
But I've found a bug with displaying a specific group (bc_group slug).
If my WordPress installation is not in my domain's root folder, the links to the group(s) are incorrect. The link strips out the directories and looks for the group in the root folder.
Shortcode used to display group "My Group":
Link for "My Group" goes to http://www.mywebsite.com/groups/my-group (incorrect) instead of http://www.mywebsite.com/directory/wordpress/groups/my-group (correct)