Either of these can be changed in User Control Panel.
- Click the Link for the "User control Panel" in the upper left.
- Click the Profile tab.
- On the left hand side click the link "Edit account settings".
- All of the fields should be empty however your browser may have filled these in based on auto fill settings.
- Delete anything that might be filled in.
- Fill in the new email address or password you want in both fields.
- Fill in your current password in the last box to confirm.
- Hit submit, you may be required to confirm this change through email verification if so you'll have on screen instructions.