After logging in to CNET (I am always logged in because I chose the "Remember me" option when I first typed in my username and password), hover your mouse over the "person/talking head" icon in the upper right corner, then click directly on your username that is displayed immediately below. That should load your basic profile tab with basic information about you. In order to change/edit other items, such as your password, etc., you'll need to click on the other tabs that are present, such as "My Account Information" or "Settings", etc. Occasionally, when making such changes, you'll need to re-login at each new tab selection but that shouldn't be a problem.

Hope this helps.