Don't know if this is the right place to post things like this, but I have created a WoW recruitment addon for phpbb2 that allows the site admins to alter the availability of each class through a menu driven page in the Administrator Control Panel.

The only Recruitment Block that I can find requires the user to alter the values within the page itself which requires the admin to download, alter the file and then upload the file with the new values.

this is a simple mod that could easily be ported over to the various other programs out there.