I upgraded to DT Register 2.5.2 and JEvents 1.5 RC on my test site. I use the plug_dtregister 2_3 and the hack/patch for JEvents to make a Click Here to Register for This Class link on every event page. It works fine for adding new events, but now that I have upgraded, the link does not show on any events that were posted before the upgrade. I've submitted a ticket on last week, and am waiting on help, but I wanted to see if anyone else has run into this problem and did you find a fix for it.
I have found that I can delete the class in DT Register, resave it in JEvents, then go back to DT Register and reenter it. Then the link will show up. The problem is that there are over a hundred classes and I would love to find a fix so I don't have to manually re add all classes.