Events GuestList Registar System

I currently run a community website/portal (view it at [login to view URL]). The website is by member registration and autentication. My webmaster/programmer just joined the Army reserve and is not available for the next 9 months at least. I want to add a few features to the website. The first project I want to add is a simple Events Guest List Registration tool that will function like the one on this site at [login to view URL] Essentially, members will be able to see flyers/images and information about nightclub events; each flyer/event will have its own Guest List and members of our site will be able to register on any Guest List of their choice. The list of registered Guests will be displayed when each event/flyer is clicked. A similar tool can be seen at [login to view URL]