server is doing a rerouting according to your ip-address (can be overcome). you can go to a url like
http://horizons.istaria.com/setcountry or something like that (have to look it up, someone posted it). then you can set your country. from now on you can play on servers you want BUT
they are sooo great, intelligent fully away that the world is not to be united in a game that they wont let you create a account on a european server with a US credit card :-(
nor can you create an account on a US server with a European credit card, so all the workarround are useless.
if you have someone in europe paying your account, you can use the workarround with the country to play the game, though .-)
maybe that helps you
Par