Unlocking cell phone service provider info needed

hi i know its possible but i cant seem to locate all the info I need.
what im really searching for is some information on how to unlock cell phone so that say i can use my LG CAMERA CELL PHONE WHICH SAYS VERIZON ON IT, AND BE ABLE TO UNLOCK IT SO I CAN USE IT AND TRANSFER MY METRO PCS INFO TO IT AND BE ABLE TO USE WITH METRO OR POSSIBLY BE ABLE TO USE IT WITH MY PRE-PAID TRAC-FONE SERVICE PROVIDER WHICH MY TRAC-FONE PHONE HAS A SIM CARD IN IT AND MY LG DOESNT. I HAVE THE NOKIA UNLOCK PROGRAM BUT MY LG PHONE ISNT IN THE LISTING BUT MY OTHER OLDER LG WHICH IS SCTIVATED RIGHT NOW ICAN SOMEONE HELP