the mambot, module and component (UGM) code appears to conflict with template code (I use RocketTheme Versatility III) and other installed mambots. The UGM component won't display the functionalality (search for galleries), and the smoothgallery mambot just throws errors. No help, so far (3 days), from the OSCandy forums.

The smoothgallery mambot (and the module and component) looks great, by the way, on a fresh Joomla installation. I just wish I could figure out how to use them on my "real" site.

I've had great luck, so far, with the JCal component and modules. Easy installation and seamless transfer of events from ExtCal. The one odd thing that I can't seem to correct is that all events are listed with "MDT" following the date/time of the event, despite the fact that the time zone is set correctly in the admin back-end (Eastern Time). If I use a 24-hour option, no problem, but the 12-hour option results in something like this: "Date: Saturday, July 07, 2007 At 8:00:00 Am MDT".
I'd also like an option for a simple, default text editor, rather than providing the more robust editors for entering event information (stuff like "insert image" confuses the operation).
Minor quibbles, though. All in all, JCal is a fine component, and many thanks to the creators.