Quote - ...You sure you're talking about the right product? The image on that page indicates it's for tweaking textures in Photoshop, not for doing stuff in the material room....

Yes, I'm sure.

It comes with a "default" blonde texture so you have something to work with if you need it.  However, it also comes with umpteen bajillion presets organized by hairtype/effect in the material room.  The default blonde hair texture it comes with is really just a target for it to load when in the material room for a difuse texture.  It sets up the material's tree using that texture and then you redirect that image map node to the original base texture for your hair.  You then do the same thing for the image-map assigned to the transparency so your transmap lines up.  Walla, you're done.  The drawback is that you have to reassign those two maps whenever you change the material node settings while experimenting.  But, you can turn around and save the hair/matpose and won't have to worry with it.

They're pretty decent materials settings.  Try them out.  (Note: they're not going to make a bad texture look good.  But, they will help a decent texture look great.)