LSLowry seems to be trying to confuse you. When you finally get your avatar working it might not appear on your own computer, although most other people will be able to see it. That's because your computer has stored the old 'default' avatar (with the two 'jelly babies) in your browser's cache, and is still using it.
If you get to that stage, you'll need to clear your browser's cache (not the 'history', as suggested by LSLowry). The way you do that depends upon which browser you're using. You can find the relevant instructions here:
http://www.wikihow.co...our-Browser%27s-Cache
However that's not going to help you at the moment. Go back to the 'Edit my profile' page, which the Editor provided a link to, and try changing your email address again. Remember that you need to change it in BOTH of the email fields, before clicking 'Submit'.
If that doesn't change the displayed email address, use the 'Contact Us' link, at the foot of this page, to let AB's techies know about your problem.
Chris