Just tried filling out the facebook profile link in my CP profile and it says format is wrong. The new facebook has a different URL so you might want to update this.
The new format is:
http://www.new.facebook.com/people/User_Name/xxxxxxxx
xxxxxxxx being a number
The new format is:
http://www.new.facebook.com/people/User_Name/xxxxxxxx
xxxxxxxx being a number