Maryl,
Look to the left of the screen, at the top of the blue column for the icons of a house, envelope, circled i, person, and quote boxes. If you hover over each icon, text will appear that explains its purpose. You can access your account info by clicking on the person icon ("Your Profile") and then finding the link to your account info on that page. For Tree-mail, click the envelope icon ("Your Mail".)
cross-posted!