i have just found this info from nesdev on third party pack...
PowerPak mappers (last updated 2011-11-17): CNROM, MMC3, FDS, NSF, VRC4, VRC6, N106, Sunsoft-5B, BxROM, Codemasters, Mapper 90 (incomplete).
PowerPak MMC5 mapper Partial support, some games may not work 100%.
i stand by my previous comment..