The Caster's group on the forum is the website owners which is Tom and myself. I made the forum mostly for Tom and I mostly regulate it. So, I added Tom as an admin so he could check out what is going on and edit a few things if he feels the need.
Josh just recently started casting and he's not much of an HTML person so he wouldn't have much to do with the Administration Panel.
If he wants it though, he can have it.