Here is a tutorial i found for you, i reccomend you dont try it, because there are problems with the radio, themes and more, google k310i to w200i
 and there are sites listed with the issues...
if you still want to go ahead and give it a try:

http://lionelxp.gigacities.net/blog/?p=3

good luck, tell me how it goes if you decide to go ahead.....:D:D