The MUF Archive has been closed a long while ago, as I couldn't maintain it any longer. However, the MUFs still exist and can be downloaded here. It's just a bunch of unsorted MUF files, mostly ready to be uploaded to any fuzzball version 5 MUCK. You're on your own, though, the code is really old, and surprisingly ugly at times, just like most MUF code.
Seriously, I mean it. That code is a real shame, I'm telling you. It will surely break your MUCK hilariously! I've been young and needed the
moneydiversion! However, in case you need some code to laugh at, feel free to browse through it, it's all GPL'd after all.