plz help me plz am new here

hey well i need help as u all know from my subject and well how do i put a big picture under where my post is at? and how do i get the thing to say that i am not useless for some people it said like cloak badboy or president or samuri with an icon and for me it said useless oh geez help me plz plz

To change the title you need to be here for 60days or have a post count of 2000. Or you talk to the webmaster. Check if he is nice to you.