Free web address/port fowarding

Can anyone please tell me of a site that will allow me to forward a web
address to another transparently with port translation as well? I'd
like to bypass Cox HSI's blocking of port 80.

ForwardingAddress:80 -> MyServer:81


--
Bryce Chidester
Network Administrator
CoBryce Communications
Bryce AT BryceCo DOT Net
http://www.bryceco.net