Welcome to LOST, Pilgrim.
It is probably not a big deal that the computer was reprogrammed. There are a few fixes (radio not keeping time, transmission vibrating at a certain rpm, adding fog lights) that can be fixed with a computer flash at the dealer. Here is a list of technical service bulletins for the Liberty where you can read about them.
viewtopic.php?f=104&t=56151
Here is where you can see if there are any outstanding recalls on the Jeep and where you can download a build sheet that shows what equipment it had when it left the factory.
https://www.moparownerconnect.com/oc/US ... Login.aspx
(Scroll to the bottom of the page)
Good luck with your vehicle search. It sounds like you found a nice one with low miles!
