Questions from a DS n00b

[Orophin]

If you master a job, you can obtain the best weapon for this job from the Master Blacksmith (He/she/it only appear near the end of the game).

Also, I would start a new game if I were you. Lvling up Freelancer a lot is a really bad idea because you gain less bonus stats for your character. If you always put a character as a Monk for exemple, he will have a lot of HP at the end of the game, a lot more than a character you lvled as a Freelancer to lvl20. The less your lvls are high for fighting the second boss (You have the 6 first jobs after him), the best will be your characters later in the game.