Can't speak for him, but I've been having a hell of a time getting Zinc to run with Mamewah... Coincidentally, it's what I've spent the last ~1.5 hours trying to do (after spending an hour or so manually rezipping the roms for Zinc so they'd even work with the program, since it wouldn't recognize my Mamezipped versions).
Best I've been able to get is a brief black screen, then dumped back to the frontend. There's an older post on the Mameworld forums about it, but the advice given there didn't help (was related to older versions of Mamewah and Zinc). Tried a few other things as well to no avail. Maybe I'm just missing something obvious - wouldn't be the first time. I would welcome any help/info on how to get the two to play nice together.
I can't help but wonder why Zinc is designed to run only with numbers, rather than anything actually related to the names of the roms... Seems like it makes things unnecessarily complex.