So for anyone who doesn't have a way to patch the nwn2 gold edition with motb installed and gets stuck on the peak after killing the fire giant King, here's what I did.
Before entering the peak, spawn a dungeon master by using the debug commands
Then go and kill the fire giant King, do whatever you need to do, and then type
and this will teleport you to wherever you spawned the dungeon master.
This will, however, not fix the quest as when you return to Khulmar he will give you dialogue that indicates you still do not possess the belt.
Still trying to figure this part out and will update this thread once I do...if I do, lol.
I'm sure the patch would fix this but I do not have Internet on my computer because of where I live so hopefully this helps someone else out there in the same boat as me.