how to set up the checkout page in Prosites?

I am having problems understanding how to present the signup page to new visitors on my site for Prosites. Where is the checkout page talked about in the tutorials? I don't see the pricing columns on any page when I'm logged in or not logged in.

I even created a test site and still can't see that signup spot. I do see the upgrade button in that site's admin bar, but it doesn't go anywhere.

I have been using the Membership plugin up to now to sign up members for subscriptions. Do I need to disable this? I notice if I type in http://wordsandwriters.com/wp-signup.php, it goes to my Membership "join" page.

I know this is a basic question, so I must be missing something easy.

Thanks, Joe.