Gary-
Jack up the wheel you're working on so that the weight of the vehicle is mostly off the wheel, but so that the tire is still touching the ground enough so it won't spin; this way the wheel will be allowed to settle unto the hub without the weight of the vehicle preventing the wheel from getting square. One-hundred foot/pounds is a little more then hand tight. Most people can easily torque to 150 ft/lbs with a standard lug wrench. Make sure the lug nuts are snug...just remember that one reason you don't want to over torque the lug nuts is so that if you have a problem on the road, you'll be able to remove the lug nuts with a standard lug wrench.