Is there any way to change the e-mail of my account?

I dont use anymore the email linked to my account, and I want to change it to a new one, anyone knows if its possible?

Click the Edit Account button you see on the screen.

Does that work again? Id heard it had been "locked in" for security reasons, I suppose. Also, these kind of questions should go here http://www.guildwars.com/support/ first.