The command 'progress' will display your current progression and the cost for you to move up to the next tier in class-progression. When you are ready to progress for the first time type progress <class>. Classes can be seen with the 'progress list' command, and it will allow you to see the information about your class progressions. After five progressions your sixth progression will allow you to select the focus class of your choosing.
If you can't progress at the guild, TALK to the guildmaster, he'll give you a clue where to go.
For stalker, talk to ripclaw in quizai and then yoshimitsu is in temple hnarr in the portal, then he's hidden.