Hello so I am trying to get the NeilMC's terrain pack for Fallout 3 to work with TTW, but I not really sure how to get it to work. Just dragging and dropping the textures in the folders doesn't seem to be working (it just keeps using the default textures), and I'm not sure really how else to get it to work. Do I need to convert the texture files somehow? Any help would be great, thanks.
(And for whatever reason if you would need my Specs here they are)
i7 2600k, GTX 770, 8GB Ram, 1TB HDD