events calendar booking

Hi,

I'm using a combination of views, panels, events and calendar to run a booking thingy on an intranet I'm developing for a local church - the only thing I need is a way for people to book their room from the calendar view by clicking an icon on the desired date. (hour slots would be better, but that's way beyond my current coding capabilities)

Now, I found this ancient patch: http://drupal.org/node/6922 but I can't figure out how to adapt it to the current event module.

Anybody have any ideas? (Hope it's ok to ask in this group?)