There is not much that is publicly available in way of contacting other teams. If i remember correctly, direct contact information for teams has been removed from TIMS in regard to privacy. As Arefin mentioned, you can go to
http://www.usfirst.org/frc/map/ and find many teams websites which may have some contact on it but i have a better method. Many regions have FIRST Senior Mentors working to help them. New Jersey has Mr. Paul Kloberg. If you contact your areas senior mentor, they normally should be able to forward a message to all area team contacts they have, or would be able to at least help you out in some way.