I've followed the directions and have been retrying the last couple of days. Are the staff forums under the "FanimeCon Events and Discussionmentarianism" section still there?
They should be here:
http://forums.fanime.com/index.php/board,62.0.html
It looks like your staff code was entered correctly and everything. Still having difficulty seeing it?
You should see it above "Registration" on the main page.
I don't see it above registration, and when I click that link I get "The topic or board you are looking for appears to be either missing or off limits to you". :<