Okay, I'm reviving this long dead thread with an update!
UPDATE:
Since 07 is half over I've opened up the calendar to accept submissions for '08! Yes, this means you could be the 1st to submit Christmas or Hanukkah for '08! We need all the popular events for the year filled in. This is also your opportunity to fill in your Birthday for the upcoming year.
FYI: I've been receiving a pretty steady stream of events even after this thread faded into obscurity, so people are actually using it!
To Bezman:
First off let me apologize for not getting your flags into the calendar, I know you spent a ton of time on them. To make up for it, I'm committing now to get them in there, but I'll need you to send them all again as individual .gif files along with a corresponding .txt file with all of the names comma separated. So, right now we have:
flag0.gif
flag1.gif
flag2.gif
flag3.gif
And a text file that has this in it:
"u.s.","greatbritain","scotland","sweden"
You just need to duplicate that pattern with the names of the gifs and the text file sequence.
Enjoy!