This is the registration management page for your registrar. When you choose an event from the dropdown list, it will display all the registrations for that event. You can download reports for the registrar (Registrations) and for greeters who meet people at the door (Attendees). With an event selected, you will also see a button that will allow you to send bulk emails to attendees of the event.
You can view the details of each registration by clicking View in its Action menu.