for activating tribunal, first install it. then load a game and the first time you sleep, normally you will get attacked by a dark brotherhood assasin. after you have killed him, go to ebonheart, on a bridge stands a guy in adamantium armor(sorry dont know his name)and talk to him about it and follow hit instructions

to become a werewolf, just follow the bloodmoon main quest and at one time, you will get attacked in the skaal village by werewolfs. after the fight u have contracted lycentropie (sp??) and you then have the choice. If you dont want to be an werewolf simply drink a cure diseas potion, if you do want to be a werewolf just dont do anything and wait three days.its that easy.

with regards

hannya.be