Looks like server is down. I'm trying to find someone to do something about it.
I found a (possibly old) copy on my computer, I have it put
here if you're interested.
A better option you have is to use the "lpkg" packaging system by MattJ, see this link:
http://www.matthewwild.co.uk/projects/lpkgI think he has vnc packaged.
-G