First, you have to find out the port your BitTorrent uses (you can do this by checking the BitTorrent preferences/connection).
Then you need to log in your Perfect Privacy account.  Once there, turn on the “Use custom port forwarding” option. In the menu below choose your server group and the type of port you want to forward to your local port. Keep in mind not to use BitTorrent on the US and French servers, because Perfect Privacy prevents access to avoid unnecessary trouble. Most Perfect Privacy servers are not affected and all ports and services can be used without any limitations.