Hello. Glad DT Register is working so well for you!
Currently, DT Reg does not acknowledge if an event is marked in JEvents as registered only. The next release will do this. So, for now, you\'ll have to do a little workaround.
Instead of using the default frontend of DT Register that lists the events for registration, you could do one of two things (or both):
1) Use the frontend of JEvents with the hack we provide that adds the Click Here to Register link. You can set the JEvents item to public or registered. Then, if someone is logged in they will see the private events along with the registration links.
2) If you have content items setup with details about your events, you can set certain content items to Registered instead of Public and then use our supplied Mambot to add the registration link to the content item.
Hopefully this will be of help to you. The next release will bring improvements to this, but for now, this should help. Thanks.