will the Taiwan version of EoTN work on my US GW?

I'm not sure if this is the right place to post my question but... here goes. My Guild Wars Prophecies, Factions, and Nightfall were all installed and bought in the US. I recently moved to Taiwan and obtained a new PC. All I needed to do was download the client from the main guildwars site and enter my user and password to retrieve everything back.

Now with EoTN released over here in Taiwan which is the chinese version would it be compatable as a expansion/add on to my exsisting account or am I required to buy the english/US EoTN which is like impossible since places like amazon.com and most online retailers have a new policy that they do not ship software and games to other countries.... I've also noticed terrible lag ever since I've moved here. The online light is always orange or red. I'm not able to access the Taiwan or any other asia servers. Does the client still think I'm in the US and when I connect to the servers its extra laggy? DSL reports shows my speed to be fine so I'm not sure what the problems are. US and EU servers and International servers are giving me orange and red lights. Could it be due to the Halloween event?

Thanks for the help.

I think it will, because you can set you "language" ingame, and you can move to servers, its not like WoW you have to choose a Realm and then you can only play there.

GuildWars let you move to servers, whenever you want
So i think you can

But im not really sure i think that the best way is to contact PlayNC or a fellow Taiwan who had tried it before

I don't think taiwan is in an option of changing servers though. I really can't help with your situation other than to say, make sure whoever advice you get knows what they are talking about .

Yeah, or packet loss. Generally speed tests don't test for packet-loss.