Here are the poser_surface TShirt settings for P7 Ben that I applied to Kids4 Skateboarder TShirt.  I deleted all the original Skateboarder Tshirt nodes, changed the settings to these for poser_surface, and added one image node and connected it to Diffuse color and Specular color. I left out the second image map for Displacement, seems I didn't need it.  Granted, I'm just copying what worked and I really don't know exactly what I'm doing or why it works.