As others have said the steering wheel centering is alignment thing and remember when you bring it in for an alignment make sure you tell them you want the steering wheel centered or they may not even lock the wheel in place before they do the alignment.
Now the ignition problem could just be a lose column problem as well, you should fix that first before taking it in for an alignment, and remember these cars need a 4 wheel alignment on them, not just a front end alignment. Sit in the car and see if the column moves when you push it forward or pull it backward or side to side. there are some bolts under the dash and column that hold it in place and they may have gotten lose from years of people doing things to the column. look at that first, then you can loosen the bolts holding the column in place and try pushing the column forward and see if that makes a difference with you ignition switch issue. now don't forget to tighten all those bolts back up when you are done or you can have even more problems. and while you are under the dash check the bolts that hold the ignition switch itself on the bottom of the column that is the actual electrical switch for the ignition, the one you put the key in is just one part of this.
Technology is great when it works,
and one big pain in the ass when it doesn't
Detroit iron rules all the rest are just toys.
[This message has been edited by 84fiero123 (edited 08-03-2014).]