I believe blackholes act as a pulley on light ,returning light back to it's origin where the past could be viewed in the future. Prove me wrong.

The burden of proof should not rest on the skeptic, but rather on the person making the claim.

Well, in the Black Hole and the subsequent thread Legat started, Taed already asserted that light does not bend, so you're argument is already null and void. But let's go further:
Your entire argument depends on the fact that black holes exert a gravitational force similar to other celestial bodies, which it does not. Outside of the event horizon, light/matter is not affected, however, everything inside the horizon is dragged into the center to never be released. Therefore, we could never see into the past.
But, suppose the light did bend. I doubt there would be insufficient light left from the nearest black hole, V4641 Sagittarii (only 1600 light years away), for there to even be an accurate read on the light. Then there's the problem of light from other stars mixing with the light from Earth. And then the assumption that Earth's light would make a full 180 degree turn.