External yes. I altered it from a membership database script I wrote for a non-profit I am president of. It is a very simple script.
I can write up a simple script to add a link in the profile page the desired information from a user's profile However by default that would only be email and website and possibly name but this script has a first and last name field. Normal Threads users dont have phone fax etc address etc. but if they use dimopoulis's contact Threads scripts they might or if they have a modified threads install.