So there's good news and bad news.
The bad news is you probably need to redownload the whole game.
The good news? That's the last time you'll have to do that. The patch system does seem to work, so the next time a problem arises like this, it won't be a redownload, it'll be a few KB's. The download link has been updated, so just go here to get it again.
-No longer crashes when fighting Camelslayer in the Crystal Prison
-No longer crashes when trying to shop in the Caves of Madness
-Krazier Incarnation D's Stinger no longer crashes the game
-Amaterasutheredeemer's Power Stroke has been rebalanced; a level 99 Prelich wearing no equipment can no longer do literally half a million damage
-Patch system has been implemented; how to install patches will be explained when the need arises
Transferring Save Files
Save files are located in the folder with the game. After extracting the newer version, simply copy and paste the save files over, and play.