I've updated the calendar modules to a more a recent version, so adding events should be a little smoother.
I've also dropped the mini-cal on the front page and replaced it with an "upcoming events" module which makes it easier to see what's coming up, rather than having to browse the calendar page. You can still do it the old way if you wish via the main menu on the left panel, and if people would like to see the mini-cal back on the front page, I can do that too.
The main calendar theme needs a little work to bring it back into line with the style I had previously put in, but as it's cosmetic and I'm tired, so I'll do that over the weekend.
Anyway, feedback plaese on these changes.