You need all the sensors, etc. from the original engine, some things changed without looking different, especially the distributor. If your car is newer than 94, you need a crankshaft sensor between the oil pan and the accessory drive pulley. As redpepe said, the main ground underneath the intake manifold is missed by many when changing engines.
Oh, maybe I'm answering a question that wasn't asked, now that I re-read, it sounds as if it doesn't even crank. There's a shim on some starters that keeps the gear teeth aligned properly, and automatics have a different starter than manuals.