First: How do you force a conversation to start when you walk near an npc. I want the conversation with the quest giving npc to start when the player character walks into the quest givers bedroom. From what i've seen in other areas an xmarker may be useful for this, but i'm not sure how it all works.
Second: The first objective in my quest is to ambush a group of slavers and get a key to a vault. I want the slavers to spawn only if the quest has started that way the player character doesn't start the quest accidentily by killing the slavers before talking to quest giving npc. I used some activators in the vault to spawn characters at certain times and I assumed that activators would be needed in the same way for this problem, but I guess that I just didn't have the code right.
My mod is called The Railway Express and is uploaded on http://www.fallout3nexus.com/ if you want to check it out.
Thanks for the help.