Quote Originally Posted by danp View Post
They will not be deleted or moved, and based on my testing you can still use the threads to discuss the event.

What will go away in the future is that threads will not be created for new events added to the calendar and there won't be links between the calendar events and the threads that were created in the past.

This is very unfortunate, but I was unable to find any working, reliable solution to this problem. We have to upgrade to vB4 because vB3 is no longer supported
It looks like this might work as a calendar addon.

http://www.vbulletin.org/forum/showthread.php?t=123416

I don't have my test vB environment setup right now. So, I wasn't able to test it.