I have a 97 jeep cherokee and the lock is jammed, so now it won't close, any help would be great.

ice, the ice has no limits, on effects.
what does this mean.
doors close down my guess is the latch is jammed, right, in the door jam.
the latch, heat it up with a heat gun and lube it when dry.
park in doors? a garage? if not possible
learn to lube up the parts. so ice can not jam them.
or get help from any mechanic.
he knows what to do, let him/her.

torque converter locking up have it checked

check the wires in the drivers door jam may be broken and shorted and the accuator may be bad

1997 jeep cherokee You just go to the link I attached I'm sure you will get the solution of your problem

Just a suggestion as I have seen this before--with door open pull up on outside handle and in door there is a curved latch that can be pulled open with a screwdriver---the hook is likely closed and with opening pressure on the outside handle you should be able to snap it open so the door will close properly---often happens if someone snaps it by accident closed (the hook latch).

check fuses and relay

Look at your fuses under the dash or by the battery black rectangular box

Try to check this Jeep Grand Cherokee Laredo. ANTI-THEFT SYSTEM

Hope helps.

did you figure out what the problem was? Mine is doing the same thing and I think it is drainning the battery.

You need to remove the panel from the liftgate and unlock and open it manually at the latch. It is not fun, but you can get the panel off with the hatch closed.