Also, I'm running Mac OSX. I've got Wine, (which is why I asked about a 32-bit version) but if your mod is compatible with a 64-bit Mac version of 5.22b, that'd be even better.
Viewing post in Aric's Expansion Rebred
This is the new Aric's mod which uses 0.5.25, not 0.5.22b. The game uses the same files for 32-bit and 64-bit, so it won't effect mods at all. Not sure if or how mods work with Wine. If you can't get the mod to work with Wine, then I recommend checking this thread https://itch.io/t/628179/how-to-make-mods-work-on-mac-osx-without-wine