How do i make Caldavar.s2z work?

[iPodTouch]

http://www.youtube.com/watch?v=6534ibtnvfQ&feature=youtu.be&hd=1

starts around 0:55
forest model

i put it under "game" where i put all my other .s2z files but i dont see any change in game.

its not "moonlight caldavar texture" mod

[Enjaa]

go over there >
then turn here <
then u just keep going for about 500 metres and ur there

[SHiRKiT]

Wow nice mods on that video.