antifreeze and oild leak, car overheating

I think you have a leaking heater core and an oil leak. A residue on the inside of the windshield would be coolant mist, residue on the front side of the glass could be oil from a big oil leak. A Chrysler specialist could diagnose and estimate these problems for you. Here's a diagnostic link for you: http://repairpal.com/chrysler-repair-in-waterloo-iowa