to make life a lot simple
if you have AOL, go to file, open picture gallery n its self explanitory from there
once you got your pick for ur choosing
there is a cut option n u can make that pic 50 x 50
but if its a favorite pic of yours, its highly recommended that u get 2 pics: one for the avatar n the other for something else cuz once its down to 50 x 50, u cant undo the process