Different Colours in Particle Hair.

Hello all, I have been learning Blender for a year now and finally I have to ask for “HELP”, I am modelling a dog which will eventually be part of a cartoon (I hope), I am at the stage of making his fur which varies it’s colours, I have got a skin texture in place and vertex groups with their textures but all the fur I create using the Particle Mode turns out white, how on earth do I get the different fur colours please

Upload your blend file to http://www.pasteall.org/blend/
Ensure you pack all textures in the blend using the File / External Data menu