Edit your forum profile by clicking on “View your profile” at the upper right of your screen, then click on “Edit”
Edit your blog email address by going to Options->General Options. Please note that to change this email address, you must confirm the new one by receiving and responding to an email. If you do not do this, the email address in your options will not change.
Also, you seem to be asking a lot of questions that can be answered by merely reading the FAQ, searching the forum, or poking around in your settings yourself. I politely suggest that you try one or more of those methods prior to starting a new thread here.
For people having problems with emails changes…..check your old email inbox for a confirmation email and click on the link inside it to confirm the change. Unless you confirm it won’t change……it’s a security feature.