The Wonderland Board

I want to make a texture Dull, like Black and white or grey for my adventure coming up called : CloudCity.
Can anyone tell me how to? or make a inverted version of the texture cave black and white, i hope so, thanks. byee!

use MS word 2007, copy the texture and paste it in there, double click it and use the brightness, contrast and the recolor at the left. it might help.