Discuss it with the people who are in charge is the best way.

Proxies may or may not work. Proxies for LW can be a pain to set up & may take many to try before one works ... if it works in your scenario. There's some listed here A Fix for those whose ISP's block Limewire pages 1 - 3 which have links to alternative instructions. Page 2 has links to many to try.