OK, I did all this, I opened the 13331 UDP port, set the IP to 203.81.47.74.
I managed to register a character no problem but it trips over itself initialising the world, I get a \'server may be linkdead\' message or something like that and returns me to the \'connect\' screen. I click on \'connect\' to try again and the system hangs and needs rebooting.
NB I am receiving my net connection via crossover LAN cable with my laptop.