Ok, I'm a moron :doh: I was looking for that file in the Tree Shader mod, not the ground pounder mod. I saw the file in temptextures of course, but not in Modman when I had the tree shader mod selected. One other thing, I get errors that 'the file size (256 x 256) does not match the original (or something - 128 x 128 so they've been installed to temptextures'. This is normal right? First time I've seen that error even after installing and uninstalling it a few times now.