I deactivated the email. I want to update it to my new one. Can I do that?
at the top of the page, couldn't tell you the location exactly as I am not sure of it myself, there's a profile link. along with options to log out, private messages and so on.
Click on the profile link and you'll see a link to change your e-mail address.
Clicking on that link should get you to a page where it asks you for your password and your new e-mail ID. type those inn,submit and you'll get a activation link on the e-mail address you entered. click on that and your e-mail should be updated.