It seems that you guys forgot to setup the rates in your advertising section.
Please setup rates first.
Finish AdRevenue Setup!
You need to do the following to finish setting up AdRevenue:
1. Login as the administrator with the login and password you created in setup
2. Create new zones first
3. Create new rates next
When you finish, this initial message will disappear.
I'd like to advertise, but can't until the admin finishes the setup of AdRevenue script