BuddyPress.org

For clarity and referring back to your first post; bbPress in respect of BuddyPress is an integrated app you don’t install it separately it is part of the forums and simply needs setting up from the BP admin section of the dashboard, installing standalone bbPress will not work with BP forums in the integrated sense. bbPress plugin is a separate issue and is in beta release and at initial release won’t integrate with BP forums so you can likely ignore the plugin version for the moment.