I've used the Jevents component for years on a LOT of sites. It works and installs exactly as expected AND they have a great forum which is monitored by the devs for support when you need it. The RSVP Pro add on is a paid component, and its been worth its weight in gold for me. I've used it for several registration sites I've built including a large luncheon event and race registration (no more fees from Active.com!). Keep up the good work! Great component, great support!