Thanks! Given the general quiet on these threads, it wasn't clear to me if anybody out there is using BletchMAME :-)
Did you specify the "Hash" directory in the Paths dialog? I would expect that once you specify that, software lists would show up.
Ideally, BletchMAME would have some quality of life features to prompt the user when one of these views is blank because of paths not being set up, it would prompt the user to set up the Paths (e.g. - "You have not specified any [roms|samples|hash|profiles] paths; click here to do so")