ok, after a bit of playing around with the textures, I finally got this:
http://www.mediafire.com/?xnudnyeji93I would've sent the age files, but it takes long for me to export it... when I test it in URU, the rock texture is good, but I can see parts of the rock wherever I am on it, even if it's supposed to be concealed... you'll see what I mean when you export it. What is it's problem?