404 Error - xd_receiver

That's not normal

Make sure in your Facebook application that all values now point to your non-subdomain URL. When JFBConnect authenticates a user, the FB app is what actually responds with where to go next. We give it hints, but that's the first place I'd look for issues. On the JFBConnect admin page, does the Connect URL to your 'good' webiste or your development subdomain?

If this doesn't help, let us know and we'll try to come up with other suggestions.

There isn't anywhere in our app where we store that, but I'm assuming your sub-domain was pulsenz.com/rf-test?

I can see that in the url it's trying to use. The cause isn't actually from JFBConnect, it's from your FB Fans module you're using. At the very bottom of your page is this call:
FB.init("0e33cad2da945fefcf21d08baa6b7a55", "www.pulsenz.com/rf-test/xd_receiver.htm");

That's not from JFBC (We have a similar call in the middle of the page making this last one redundant, but it doesn't hurt since you're using the same API key). Either find the offending module (again, think it's the FB Fans box) and remove the init call, or update the url.

Good luck!