I need some help. I am playing good, playing for Opig or whatever his name is...I just defeated the Fire Knives in the warehouse. I reported to the City Watch, and he said maybe Opig would give me a better reward. Okay well when I go to Opig he says, "You return! I hope you have some news!" But all I can do is ask for healing or to see the temples' wares. What do I need to do to make him recognize that I have done the quest? Is there something more I needed to do back there? I went thru the warehouse and killed all the fire knives and looted all of them. I did it twice actually, because I went back to an earlier save game and did it again.

I also wanted to say that this is a new computer so I have a brand new installation of NWN2, MOTB, SOZ, and Mysteries of Westgate installed with absolutely no downloaded material whatsoever from player creations.

It may be related to the dialogue option you selected when talking to Fennesh. Make sure you actually tell him all about what happened in the warehouse, instead of just asking about the reward before leaving. I believe you should be able to just go back and talk to him again without reverting to a save game.

Yes, I believe there is a small bug in one of the conversation options. As Mat said, simply go back and talk with the Captain and tell him everything should fix the issue. Here is a more detailed explanation of the problem.

Player: I'm here to report back on Darius Falgar.
... (various dialog nodes) ...
Fennesh: "If you're looking for a little coin, talk to Obid. He ought to be grateful for you helping the City Watch like this."
Player: Tell Captain Fennesh everything.
Player: Leave.

If the player chooses "Leave" the plot/journal isn't updated (because they didn't explain anything to Fennesh yet). Talking to Fennesh again and choosing to "tell everything" should set things right.

Hope that helps.

maybe there are same ways there on how to defeat the fire knives