Can anyone help me, I am trying to take away the black and white cop and let the eyes show up on the background, Also to do this with a white background and have just most of the blackness of the eyes and shadows. If that makes sense?

I actually managed it once and I think it had something to do with colour burn?

Any help greatly appreciated.

Barewolf

If I understand what you are trying to do, if it is like the sample I have attached, then this is what to do.
Duplicate the background. Duplicate it a 2nd time. Invert the 2nd copy (now the top layer). Change the blend mode of that layer to Color Dodge. It should look totally white (perhaps a bit of black). Now apply a Blur>Gaussian Blur to the same top layer. A small amout of about 2 or 3 should do it. Now select a soft black brush at low opacity (between 2 and 5 %). Paint over the dark areas to make them darker. If they get too dark or you accidentally darkened white area, just switch the brush to white and lighten those areas.
Regards, Murray