Well, it took a couple of tries, but it's home!
The first time I went out there was a bust as the air compressor couplers froze up by the time I got out there. I had to come back home and warm the air compressor motor back up before I could replace the air that I released trying to get the frozen couplers to work.
For the second trip out there I had the hose and tire inflater already hooked up. When I got out there, first thing I did was pump some air into the flat tire. The rubber is cracked in some places, but it held air.
I couldn't figure out where neutral was. I tried different configurations, but each time I tried to tow the tractor the rear wheels wouldn't turn. I don't know if it was the cold, some rust inside the gear case, or a combination of both. Finally I did what Robert suggested and just yanked it out of there and pulled it home.
The ditch was fun and the Case ended up making a new trail through the cattails as I had to put a few extra tow straps on for a while so I could cross the ditch with my truck before the straps tightened up. It didn't want to climb the ditch with that length of tow strap (60') so I took two off and was back down to one tow strap. That made the angle sharp enough so that the truck was able to make the tractor climb out of the ditch.
Now I have to see if I can make enough room in my garage so that I can drag it in there, let it warm up a bit, and start pulling covers off to see some of the internals. I figure that I can drag it to the garage door, but after that I may have to rig something up so that I can push it in without doing any damage to my truck or the tractor.
I took my camera with me, but I didn't have anyone to take pics and once I got going I didn't stop to take any pics myself. Sorry!
I am not sure how long it will take me to clear out the garage and drag the tractor in there, but once I do I will take many pics. I figure that I will have no choice then (I am bad at not taking pics when I should) since I will asking tons of questions and will need those pics to show you what I am talking about.
Thanks again for all your help and I will start a new thread once I have the tractor inside my garage.