That registry link is here - -
http://www.mangustainternational.com/registry.php
Not much info other than abbreviated description, but I'm sure Jerry can fill in details.
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.