Signup Code not compatible with Buddypress

Hi there

I'm running a BuddyPress site with no multisite.

The signup code plugin says that it's compatible with BuddyPress - but when I activate it I get an error message saying:

The Signup Code plugin is only compatible with WordPress Multisite.

Can this please be fixed to work with BuddyPress as stated - I don't need or want multisite.

cheers

Stef