Alright, I might not be of much help on this situation since I'm new to Jeeps, but I've been tearing mine apart to repaint my entire dash and had to remove the wheel to repaint the column. I used a regular socket wrench (don't remember the bit size) with an extention (to get over the odd formed wheel) and it would NOT move. I used some Gunk Liquid Wrench (by far the best on that market, IMO) and let it sit for 15 minutes. Still no luck. Three hours later at 2 in the morning in a garage that was 20 degrees (which also didn't help the situation) I was about to give up, when I thought of something. I went to Wal-Mart and got a metal pipe from plumbing.. it was wide enough to fit the end of my socket wrench into, and was about 2 feet long. I got home and put it on the end of the socket wrench and pulled like hell, and tada..it came off. The extra leverage is a miracle. (Wow, didn't mean to go into an entire story about that, sorry).
Also, at the risk of sounding like a moron, when I first got my Jeep I was extremely paranoid that it wouldn't lock after I took the key out, and could be started without one. Turns out all it was was some steering lock mechanisim-thingy. You push it down and pull the ignition towards you and it locks..I hit it on accident and found out that that was all it was, so, who knows..maybe you just missed it, it's worth a look before tearing off the wheel.
Also, if you can't get the wheel off, you can go to NAPA or some other auto store that sells steering wheels and get a removal/installation kit for around $20 and it makes removal much easier.
Damn. I'm sorry about my lengthy posts, folks. Hope this helps.
"...that's why my car is protected by Smith & Wesson. No insurance companies, no cops, just a .45 to the side of the head."