I want a plugin that generates a random code, but the code promotes people through GroupManager or Permissions. I've seen this plugin on a previous server, I just don't remember what it was. What would happen was you would take a quiz on their site, and if you passed it would give you a code. If you entered the code in chat (with out any "/" or commands) it would promote you and give you build rights.
Dude, fix your title before you get an infraction. Edit: while your at it, have a read of @codename_B post at the very top of this forum about formatting.
http://forums.bukkit.org/threads/promote-users-automatically.47082/ Posting the thread twice isnt going to get your plugin made any faster. /facepalm
Your title may have dropped my IQ by several points... Why don't you just go find out what plugin they were using.