So, i recently wanted to add new Water + Grass Textures to my cache;

So i went into the Cache via Toms Cache Suite replaced the water Texture then edited the Grass Texture so it would load an image file instead of a colour;

I added a new .DAT file in the image 50.dat and in there is the Grass texture; went and loaded it to the grass texture Packed the cache + loaded the game.

The Water + Grass were still the same colours as before?.

Is there more to editing textures than what i just did?