I have'nt researched this yet, but I've been told that there is a population of wild hogs in the Shawnee National Forest in Southern Illinois. A close friend of mine who owned a gun store told me about the hogs, and said that DNR was allowing hunters to come in to eliminate the hogs. I've actually been tossing around the idea of checking into this, and planning a weekend trip down there for a hunt.
Try to put your tree stand in a tree with plenty of background cover, keep the prevailing winds for that time of the year to your face, and take care of those pesky squeaks and creaks your stand may have developed while sitting in the shed. A good treestand lube can be made by heating petroleum jelly until it reaches a liquid form. Some hunters have reported success by including a cover scent in this mixture before applying it to their stands.