How can I create an avatar?
you can do it here: http://picasion.com/create-avatar/
simply upload a picture that you want to make an avatar of, and follow the directions. remember not to upload your personal pictures or stuff that you may not want to share on the public internet; use a generic picture or some scenery whatever.
we use 96 x 96 pixel avatar on the forum.
on that site, either you can crop the picture from wherever or resize. crop is straighforward, click on the box and move around; resize portion of the image by holding down ctrl key and dragging your mouse. as in the example attached below.