durster2006:

If it's true I stand corrected. A friend of mine says he can get hold of a thing called a Turbo sim, Which will make all the features work (bar visual voicemail).

im waiting on one to arrive.

As far as I'm aware (Although I'm not sure of the legality of it) you don't even need that. It's possible to unlock it for use with all features with your usb cable and some free software you can download by doing a quick google search.