Thanks for the list, but without OCTGN I can't access the data. And it seems there are a lot more spells updated than were collated by joechip90 and the updated spells from FvW might also be missing, as I think some of them might got an update as well in the Arena reprint.
I don't know maybe I'm too nit-picky but in my opinion it shouldn't be this hard to compile a pdf with the pictures of the updated spells for the 1st (2nd/3rd) edition owners. Depending on the amount of updated cards I would guess 30-60min. A simple pdf with the new updated card pictures since 1st printing as was done for the three errata'd cards and than add it to the download section. I think I am not the only one who would find that super helpful.
I know AW is a smaller company with not much manpower, but as I said I don't think something like this would take long, but on the other hand would be such a great customer service and for me especially stuff like this will decide how much more money I will spend for Mage Wars, even though I really like the game.