I'm having some trouble with the Ao PC texture pack now. The game just flat out doesn't launch after I extract to the game's directory. Here's the error log if anyone can help.
I was able to get my patched game to read my clean save by renaming it(the save). Start a new game in the patched version and save your game, then change the name of your old save to that of your new one and overwrite.
At least that worked for me.