V-ray version 1.49.01 but it's not the official one, i mean it's cracked, and vismat materials from http://www.vismats.com/materials.html

Hey, I don't know if there's any topic about this or not but I will ask anyway I can't figure out what the problem might be. I have Sketchup 8 but the older version not 2013 or 2014 , and I tried to put vismat materials, and in render it doesn't appear at all just a colour of the material and that's all i get what sould I do? i really like them i think they're more easy to use . Please help me