Firstly, love the theme and I love how you've incorporated the four basic colors of your theme into all your branding, the red, black, grey and white goes great together, not many people do this, so hats off to you.
Secondly, I have to agree with
sambling, I see some forums which have not had activity in over a
month, as an administrator you should be extremely concerned about this and post some topics yourself to get the conversation going.
Thirdly, I strongly disagree that a user must have 10 posts in order to post in your basic promotion section of your forum, this just seems like a needy way for you to get posts for your board, especially considering that posting a topic in that forum won't really get any traffic to a forum but your own (sorry to be harsh, but sometimes the truth hurts.)
Fourthly, just browsing your forum looking for things to critique, I found your staff page, located @
http://www.adminforum.org/XenStaff/ a few things I find disturbing:
'Administrative' -> Administrators or if you really want to be fancy (as you have tried to be) -> Administration
'Moderating' -> Moderators or "" -> Moderation
May I also suggest you read my topic over at the '
Managing Your Forum section', titled '
One/two tip(s) for forum owners' you may find it extremely useful!
Good luck!