Sweetmarie (Arispotle)
I used...
http://heartsofthunder.openlink.pl/images/myGallery/Stun.JPG
"Avatar image needs to be in PNG format and preferable size of 64x64 or 64x128 (width / height must be 32, 64 or 128 pixel)."
Sorry, i don't speak english very well (i'm french ^^) but your image format isn't the good format
Try to change JPG in PNG with The Gimp or Photoshop