If you've got fuel coming from the filter bleed screw, then the next step is to bleed the injectors. I know someone is going to pipe up here and say you can just keep cranking and it will self bleed, but sorry, thats never worked for me. I was never under the impression that this is a self bleeding system anyway.
So, loosen the nut where the hard lines go into the injectors. Put a couple of pieces of cardboard along the sides of the inner fenders , thats where the fuel will spray out. You can see the spray pattern better and when you're done there's no diesel to clean. If your batteries aren't in top condition, ie; they run down easily, or your starter is worn, you might consider pulling the glow plugs. It only takes a few minutes and now the engine cranks with no compression lessening the load on starter and the draw on batteries.
Crank in cycles of 10 seconds max..let the starter cool down for a few minutes between cycles. You're looking for a good wide spray pattern from each injector on your cardboard. Dont tighten the lines if its just sputtering a little as there's still air in the line. Once you've got a good spray pattern from each injector, tighten the lines, replace glow plugs if you've removed them and it will fire right up.