easy, in your profil under your images there is an uption in blue that says "upload photos" click in that and then mettre en ligne the photo toi want! down it says: "make this imagen my icon" ou something like that, click in the little square and then click in "submit imagen" and tadah! toi have that as an icone ;)
Very easy!Just click mettre en ligne pictures on your profile. Then, look for the name of your icon. Then, check the box that say "make this picture my profil picture".Then, cick "upload picture". Then, wait for it upload. Then TADA! There it is!