Go to greenguardwest and walk around until you see a ninja looking girl named "mazumi". Do all of her quests and then click upgrade armour.
go to the map and find the place for rouges and assassins, i forget what it is called.
You must go to GreenGuard Forest and talk to the girl ( Mazumi) on a screen, press the ! and press Upgrade Shop, you must be an AQ Member to buy assasin class
You get Paladin class in AQWorlds from Artix in Swordhaven (he is found in the inn).
finish the ninja girl's quest
You cannot be a ranger in AQworlds. It is not currently an available class.
hanse_dragon
you get it from the enhancers
yes
you should choose class a
you get defender class is menber only
You have to link your Dragonfable Dragon Amulet account to your AQWorlds account.
You can't exactly be a Guardian on AQWorlds, but you can verify on AQW that you have Guardian on the original Adventure Quest and get Guardian class in AQWorlds. :)