Public access to homepage content

I can't figure out how to limit public access to the content. Specifically, how do I prevent non members from seeing any of the pages or tabs on this page http://pakasabook.org/

I only want them to see the registration page/tab. I tried playing around with the levels and subscriptions, but something isn't right. Do I create a subscription for non-members and create a level for that which is for the public?