Ah, I think I've figured out our problem, Dave. See, inside of the alcpyprpSVN20070913182520 is that src file; if you're like me and you didn't catch the significance of the last three letters "\src\" of the long file address that Pryftan mentioned, maybe you copied all the contents of that long alcpyprp file straight to scripts folder? Well, I tried that first and I got the same error message again. So then I figured I'd try putting the contents of the src file directly into the scripts file as well. And presto, it works!

Try it and tell me if you still have problems (if you're still here).