How do you get child safety locks off a car?

I have an ford 91 explorer and before i got the car the child safety lock was on and i have no idea how to get it off can you help?|||Open both the driver and passenger rear doors and where the door lock on the latch you will either have a simple lever or you will need to use your key to pop it out and do it for both sides...........|||There's a small lever that you should be able to see when you open the door.|||YOU need to trade it in for a 2010 model!