[Plugin: BP-FBConnect] bp-facebook with WordPress MU Domain Mapping not working

I have installed wordpress 3.0 beta (in network modalityb) with last version of Buddypress: my “network” consist of 2 blogs (subdirectory method) that share everything (activity, favorite, group and -obviously- members).
If someone register with bp-facebook connect (and multidomain plugin is off) everything working very well: I can pass from site to another without disconnected.
Instead if I turn on multidomain plugin, my second domain url change -obviously- (from http://photofaith.net/faithmosaic to http://faithmosaic.com) and bp-facebook connect goes crazy and doesn’t recognize user (I believe because it thinks to a change of site).

There is a workaround for this?

http://wordpress.org/extend/plugins/bp-fbconnect/