What could be wrong with your 93 Ford Escort if it won't start and the dash light and inerior lights don't work but the headlights come on after you replaced the battery?
Try cleaning the battery connectors, and then apply die-electirc grease. Probably not making good contact.
This could be two separate problems. Dash and interior lights can be a bad fuse. Second, if the starter cranks over with a new battery, check your electronic fuel pump, and or your kill switch.