1. Make sure to install MoW first.
2. Go to the folder called: "..\My Documents\Neverwinter Nights 2\Campaigns\Westgate_Campaign\2da".
3. Move the 2DA files you have there to some other location as backup (you can delete them afterwards).
4. Copy the new 2DA files from the zip file into this folder (make sure the 2DA files are at the root of this folder and not in a subfolder when you unzip).
5. Start NWN2 and a new MoW campaign. Things should now be working correctly.
