As I explain to my classmates, registration is a three step process:
1. Register for the Reunion
2. Order your tickets
3. Pay for your tickets

If you look at my site, you will see that I have people in all three stages. People have just registered, some have registered and ordered and some have registered and ordered but not paid, and others have registered, ordered and paid.

I am not sure how this could be done but is there a report that can show totals for the three items, and the dollar amounts associated with each category?

Submitting to Programming. Shortly you'll have the option of requiring 1 or more of any given item be ordered in order to register. This way you can eliminate registrations without getting payment (if you want to).