Post Picture on Avatar

Can anyone tell me how to post a picture on my avatar. Every time I try it keeps saying that it is too big or something like that. Anyway I don't have any other pictures besides the ones I have posted in my picture book.

it always told me the same thing when i tried to post pics.  luckily i had the pic i wanted posted on myspace so i saved it from myspace and it fit the size limits here.  you might try saving from your picture book here and uploading that one.  good luck!