I'm setting up a new Joomla 3.0.2 install. The install of DT Register 3 for Joomla 3 went very well until I tried installing the mod_dt_calendar and the mod_dt_upcoming_event modules. Both erred out with the message: "JInstaller: :Install: Cannot find Joomla XML setup file". I unzipped both modules and am not seeing an XML file in either. There is a "_notes" folder in each which seems odd.
A week later and still the same problem. I waited until DT register told me that all was OK as in today's update:
DTH Development proudly unveils DT Register 3.0.0 for Joomla 3.0. There were several database changes required but we completed testing and have now published the new version of DT Register for Joomla 3.0.
Please help soon as I am trying to create a new J3 site instead of upgrade from 1.5. and did not expect this delay from a product that completed testing.