I don't want to be rude about it, but if you use and update MAME regularly, you need to learn how to use ClrMAME Pro. Honestly, without it you are just stumbling around in the dark.
ROM CRCs are constantly changed each MAME release as redumps of old ROMs are refined. NeoGeo ROMs where all noted as incorrect somewhere in the mid 0.80's releases, and the whole lot had to be redumped. As such, if you have these older ROMs they simply won't work on an op-to-date MAME binary.
Use the "Rebuild" option (NOT "Scanner") in ClrMAME Pro to check through your existing ROMs and generate a correct output somewhere else. Place these good ROMs in your ROMs folder, and then audit them within MAME32. Once that's done, they'll show up and all will be well.