I read your posts again and I see that you got 0 volts with the volt meter. That could mean no power, but it could also mean no ground. I wouldn't trust the meter reading until I could verify it on a known working fixture. Again run a long wire from a good fixture ground and verify that it works by using it to verify that the good fixture works. Now walk back to the non working fixture and probe the power with the long wire going back to the ground on the working light. You might need a second person to hold the ground wire up while you test.