If you haven't already, get on Facebook and join the Team Cain groups in all the states in your area, and post asking to get in contact with the organizers. I just did this with the groups in NC and SC and I've already gotten a response from an organizer. Also, encourage folks in the other nearby states to plan to help in NH instead of waiting for their states to roll around - some people don't seem to know any better.
Also, check around to see if counties groups have formed in the area. This has been done in NC but I'm not sure they're doing it everywhere.