I'd guess the green half-skull goes to the founders. The Silver ELITE title is probably for signing up to the service. I don't know about the other set, but if you could tell me, I might be able to tell the difference.
yeah i have the same problem. at first my founder status wouldnt show up. now it finaly says im a founder but i still dont have the green elite title or a green skull emblem. i do however have the silver elite title and the red/blue skull. So wtf? where is my founder stuff!?