While this component does work in conjunction with JEvents, it really doesn't take alot of extra work. Basically you set the names and dates in JEvents and you can move over to DTRegister.
We just migrated our installation to a new site, and ran into a problem. I sent an email before I left work. By this evening their support had fixed the problem. You can't ask for more.
Get this component. Use it. It is alive and well.
IMMEDIATELY (I'm talking the very second I enabled it) after I hit enabled and save in the back end, the shoutbox was filled with words like "nude" etc... I was pretty angry. There wasn't anyone on my site, so I don't know whats up with this module.