Re: Heres how to make bp-facebookconnect and the welcome plugin work togeather >>
Has to do with the fact that a few global variables and functions are not being loaded in the right order…ie the system tries to send out a welcome message before the BuddyPress messaging function’s globals are setup…but only when you use facebook as the registration/login mechinism
Thats what those changes (above) take care of.
Your problem sounds more like you need to set the facebook application settings. I assume you have created a facebook app on Facebook’s dev side right? Did you set the “Connect URL” in the facebook app settings to be your domain ie : http://www.yourdomain.com.
I beleive whats happening to you would happen if thats not explicitly set.