How to apply 2 diferent textures to a .x?

Hey guys i have a simple question here

i have a .x file modeled with max12 and i want to apply 2 diferent textures to 2 diferent sides.
how can i do it?
i mean, what do i need to do when i apply the uvw warp on 3dsmax and what i need to do to apply the 2 textures on vvvv?