So I went ahead and changed over to my new app server GMJa even though it isn't done yet. Maybe this will give me an incentive to finish it up. The calendar is back, but it's links don't work yet.
They probably will again some day, who knows. :)
I'll have to add some code to the old guy, so that whenever someone makes a request for it, they get redirected to the new one... or maybe I'll just use mod rewrite for that