My guide was for ArcEmu. Ascathos released a guide more recently, although it may be slightly out of date thanks to TrinityCores frequent updates.Last I read, it wasn't complete but enough is there to make the class. Here's the link: http://modcraft.io/viewtopic.php?f=79&t=3756
Maybe the that forum is Contributor plus, due to it being a workboard. Not sure.