Serious Davatar
Joe,
Go into your profile, to the new version. Click "Customize". From there, there's a selection to "Change" your avatar. After you click this, you'll be taken to an upload window.
You'll also need to have some software that will enable you to edit photo size. You can get this from a freeware or shareware site for free. Shrink the photo, making sure it retains its quality. What you want is for the avatar part to be about 100X100 pixel. Trim out the desired part of the photo to 100X100.
Hope this Helps,
Dave