I have the same problem (mud connection). There is a firewall in the border of my network that allows interchanging with the outside hosts only through HTTP-proxy. Of course there are plenty much ways to cheat it, but almost all of them are illegal.
One thing that still keeps me hopeful about the possibility for my dream coming true is socks2http. I can setup my mud client to use it as socks proxy and it will push all my traffic through HTTP-proxy so admins should not be awared I`m mudding.
But unless there is a host that extracts mud commands from HTTP converted traffic it is a deadend. So I`m stucked.
