OK, good. I suggest you now try this: you say you've disconnected the lines going to the fuel pump. Run a hose from the fuel pump inlet (the one the line from the tank goes into), and into a small gas can with some fuel in it. Hook the battery up and crank the engine again. So basically you've now eliminated the fuel lines and tank from the equation. If you are still not getting fuel pumping, then you can be pretty sure the pump is gone. If you get fuel pumping, then your problem is the line between the pump and the tank (or inside the tank -- fuel pickup blocked, etc.). You don't want to change that pump until you are certain it's gone.