just in case you didn't get my comment here i will put it:] :
hi!
oh sorry i took for ever to write back but all you do is submit deviation of your desktop
then when in categories choose Customization > Desktop Screenshots > Windows [or whatever program you have]
then for the pic of your self do the same but for the categories is :
deviantART Related > deviantID
really easy:]
oh and again sorry for taking like booty crack load of time just to reply and say hi >_<