I think i misunderstood your question. The stuff in Gorn is from prior builds if memory serves. Most of the new stuff I've found is from beating enemies. Also searches caves in the elvish grove etc. At least it was new stuff to me.
Viewing post in Aric's Expansion Rebred
Instructions on installations and upgrades on front page rather clear, you wouldn't be able to get pass new game menu if you bonk it unless game non-modded.
Only thing I can add is the file line User/Username/AppData <- this mark as hidden so will need check Hidden items box from view menu that is on top toolbar to access rest of the line, should be able to follow instructions from there on.