Siege Quest Items How-to-Disable Help

[Esdeath]

Good Day guys, do you know how to disable quests/npc of this set's ? http://woeset.blogspot.ca/

I tried to look into my npc scripts but i didn't manage to find those npc's/quest

EDIT - 

 

PS : I tried to remove the items in the item_db but I've got problems doing that, some items became apple so I guess it's not a better solution >.< Anyone?

BUMP : I need urgent help on this

Edited October 31, 2014 by esquilla13

[nanakiwurtz]

 \npc\re\guild\invest_npc.txt