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Pixplant and Zbrush 3.5

Hi

I used an application called Pixplant to To make a seamless tile from a photo of some tree bark for use on a mesh (AKA 3d Object) It generates 4 files seamless files for use in 3d Modeling coloring and texturing. 1 Diffuse (for color) 2 Displacement 3:Normal Map 4:Specular I would like to Color and deform a sphere in zbrush using only these files. Maybe I don't need all 4 files but at least the Diffuse and then either the Displacement or normal or both. How and where could I import and apply these files to completely cover a sphere in zbrush? I don't want just a smooth ball with a picture wrapped around it. I want to wind up with a fully textured 3d barkyball. I have not used Zbrush in while "cobwebs in zbrush section of my brain" Any Help or video links would be good. Thanks Frank