Help! Just added Marketpress to Membership site. Product/Store page not accessible

I have installed marketpress to my membership site and now have a "Product" page. How do I set this up so ALL people can view and purchase product? I guess it is ok if they have to be logged in first to be able to purchase, but how do I set this up so it is visible? Currently, it is showing no product :slight_frown:
http://www.tutuology.com