Ah, sorry. I should have guessed that, but I'm tired today. We've been having problems with most of Lurker's mods for some time now. It can't be because he took them down, since the whole post would be gone (I think). Several of us discussed it with Neal here
http://www.subsim.com/radioroom/showthread.php?t=175844 but haven't heard anything yet.
I have them all, but need to get Lurker's permission to take the old ones down and put them up again, and he has abandoned us. There should be someone who can link to other sites that have them. Meanwhile, I'm working on it.