Key won't turn in ignition, ignition locked, but key will come out

What is your question?

I took everything apart and all wires are good, fuses good. So I guess I'll have to get new ignition lock cylinder, but would the lock cylinder cause the problem w shifter nob not popping out all the way? I also noticed that my battery (positive) screw is stripped so I put a charger on it and noticed there is no charge on positive side. Would that cause all the problems?