Yeah it's annoying but totally understandable as petrix has a life just like the rest off us. He walked me through the rough process of finding some offsets the other night and now it's the weekend I may have some time to try and find the ones we need. The main ones we need are the creature vector and all the offsets within the creature object, such as age, skills, etc.
The finding of offsets is a recurring problem, especially since toady releases very very often. If you (anyone) really want to help then really it'd be good if we could start a thread or something to request that toady implements either a modding API of some kind, or at least a way of dumping the offsets to a file from DF since I think it would be fairly easy to do from inside the game. I know it's been tried before but if we could get enough people to ask nicely maybe he would consider it? We could do something like pledge to donate X amount if he implements it?
Also: Runesmith isn't dead at all, it's just missing offsets for the newer versions. I just play .16 instead personally since it works fine with it