Go to:- Your settings/Profile/Edit Avatar.
Click on "Choose File", locate the file on your computer from the open dialogue search box, select the file then click choose or open depending on which browser or system you are using. Then click submit at the bottom of the page. You may need to copy the file from your memory stick to computer beforehand.
If you are still having problems email the file to me firstname.lastname@example.org
and I will do it for you.