Impossible to complete quest "Treay with the dwarves"

[gnegno]

No one has got an idea or a solution?
Does anybody knows if there's a savegame editor or something similar that could help by adding the quest item in the inventory (so i could complete this quest...maybe, 'cause i don't know if it would work). I've searched around and i've found something...but was quite "unfriendly" and it wasn't really clear what were the things to change/modify...hope someone could help.
Many thanks