Why do I install a sketchup of materials, tools do nothing?

The skecthup I installed the software, materials, tools for nothing.Color alone.Why? Is my time to install what has gone wrong with you?

you have to manually reinstall the designated path you can.do some of my classmates next version did not, you can go take a look at sketchup forum to forum under the material point, do you recommend A forum /? Fromuid = 22063 inside the material has a plug-in, you can go and see