NOW, keep the membrane moist, and everything really warm! We got towels wet, and microwaved them so they were nice and warm, and worked over those, that way the humidity and the heat was up, and the membrane stayed flexible, and the chick stayed warm.
Do a search for helping hatch, there are lots of threads with really detailed step by step info! Just remember, dont pull him out of the shell, he is attatched, open the shells, an let them come apart, but let him work his way all the way out, but keep him WARM thermometer on the surface will help you a LOT!
Warm and Moist! Good Luck, it is scary, just go slow.....