BP Themes with standard WP?

Hi all,

Juste a simple question: do you know if premium BP Themes are compatible with a BP installation on WP, instead of WPMU ?
For instance, I got Social on a WP single installation, and some links doesn't works, or I've got an error on the top-bar :
Fatal error: Call to undefined function bp_get_nav() in /***/test/httpdocs/wp-content/themes/bp-social/top-bar.php on line 12

Thanks a lot for your help !