Support System restricted to Supporters Onloy-Possible?

Is there any possible way to restrict the support system plugin to supporters only. Since it creates a new menu in the admin panel it seems everyone can access it.

We have a general forum for all users, and are wanting to restrict support system to supporters only.

Thanks
Bill
http://www.zazzleblogs.com

running latest updates on everything as of 11am this morning.
latest update and install of support system