I ordered a new water fitting for the cold water dispenser. I took a look at the area I will be working on ( parts due tomorrow) and can not figure out how to gain access to the water line that runs inside the door. HELP Please....

Depends on how the freezer door was manufactured. Some have conduit/a trough in the foamed door skin which will allow the plastic line to slide up through, once the old line is pulled out. If it doesn't have the channel in it, then the liner will have to be separated from the door skin. Dispenser disassembly may also come into play in order to reattach.

Probably a job for a trained technician.