You have to loosen the hinge bolts at the body. Loosen the just enough to be able to adjust the door with some effort (or ever a soft hammer). If its just too far up, down, left, or right just push it in the correct direction. If it needs to come out at the top or bottom, tightin up the hinge that is correct and then adjust the door. If its missadjusted at the fender side, adjust the fender first, then install some shim between the door and hinge if you can't get the proper adjustment. If missadjusted at the lock side move the striker. Be very carfull when you shut the door the first time after you adjust it; you need to be sure that its not going to hit anything (like the fender edge). Putting some wood blocks under the door before you loosen the bolts might help you also. If its been in an accident you might need to take it to a body shop to have the hinge mounts "tweeked" a bit.