free paid membership level

I am using WP 3.0, BuddyPress 1.2.5.2, BlogsMU theme and the Membership plugin. I have 4 levels Free, 1, 2 and Founders. I want to give the people who are helping me get the site up and running a free membership at the Founders level. They will be the only ones in that level but I want them to have access to the full site which is equal to level 2.
How can I have them sign up and not take them through the payment process but not allow anyone who comes to the site to subscribe to Founders level? I may be making this more difficult than it really is.

Thanks...your support has been great!

Glenn