Texturing questions

[pwrdesign]

Hi all!

This is probably a matter of lacking texturing knowledge in 3dsmax than corona-knowledge, but I'm throwing it out here anyway.
What I want to create is the following material:

30x30cm wall tiles, the wall should have a gradient from the top to the bottom, going from matte white tiles to petrolium colored shiny tiles on the bottom.
I've created the gradient diffuse map, and the gradient reflection map, bumpmap for the tiles, but if I want to use a diffuse map for the tiles as well, how do I do that?

Best Regards Patrik