We had 5 versions. The first 4 releases had all the job NPCs at "Home" just a location with all the NPCS you need. So you can change jobs at home without doing quests and all or get weapon upgrades.
Now there are quests but limited secondary i.e Assasin X jobs. They had a Tae Kwon Do job though
lol, i played wow for 2 mths...before my card fuked up, which is a good thing. At least i'm not hooked on mmorpgs, from now until next when HSC finishes