> I know this doesn't matter too much right now, but the ROM set I have is version 0.115.
I'm sorry I cannot really help you out here, but this piece actually does matter. A lot. 115 was released back in 2007, so roughly 13+ years ago. A lot has changed in MAME since then, and I doubt anyone is willing or able to help you out with a version that's so outdated. So a first step might be getting the latest current MAME version, and the roms that go with it.
Again, sorry I am not able to help you out further.