*scratches head* that reply doesn't even make sense......
first off, try 'em out on the MAME emulator for the comp. Make sure the zip files are named correctly. Second of all (don't know if this would cause 'em not to appear, tho), if they're Neo-Geo ROMs, make sure that you add the files from Neo-Geo.zip into each ROM file. For some reason, MAME-X doesn't find the required Neo-Geo BIOS unless you include it in every archive that requires it (i.e. all Neo-Geo games).