How can I change my rogue to a warrior? No advancements yet, just a plain rogue to a plain warrior? When I go into the armory, my rogue cannot enter or join the guild, it says he cannot join.

I may be mistaken ..but I think you can't change class on a character unless he's in a guild. And you can't get your rogue into a guild until you get to the 2nd town. =\

You can't change anyone to the basic, starting roles of warrior, rogue, priest or wizard after you've started the game. The nearest to a warrior is the barbarian, try that instead. You just need to kill 20 enemies, check the stats, they tell you how many enemies each character has killed. Good luck.

You also need to go to Ishad N'Ha to find the Thieves Guild so your Rogue can join to be able to change class. It is a great idea to change your Rogue to a Barbarian as they get more hit points, still are able to pick locks, and can wear better armor.