How to change MSN e-mail address?

How do you mean change it? You can always close your current email address and open up a new one.

ya but i don’t want to get a new account.
i mean use my new email adress other then my old one

There should be a way of connecting them so when you view one email address that you can see all your emails from all the others you have. I haven’t tried myself but I know there was a option to do that somewhere. Wish you luck in finding the help you need.