pretty big problem, hard to pinpoint via the internet... but you could try listening to make sure your injectors are functioning.. take a big flathead screwdriver, place the head of it somewhere on the base of the injector, and stick your ear right onto the butt of the handle. it should click.. repeatedly as you turn the engine over. each one. (duh) i dont know where you could go form here, but its an idea, and i figgered it might help...

a more precise check of fuel pressure would be good too..

does the engine even TRY to start ever?

its not too hard to remove the valve cover, so take it off and inspect the timing chain. can't hurt. if all this stuff checks out, id imagine that its probly a timing problem that you would need a timing light to check, or dissassemble the front of the engine and check the chain the hard way.

wouldnt it be nice to go to autozone and see one of those ECU diagnosticators that somehow worked on an old-skool "dot-soon?"