Using DSi ROM and SAV files with flashcarts

Hello Everyone,I recently downloaded some SAV files from this thread:http://forum.romulation.net/index.php?topic=44952.0I have two DSi's and one store-bought copy of Dragon Quest IX and I'm trying to figure out what hardware I need to use these save files.If I wanted to load the game normally on 1 DSi and use the SAV files on the second DSi, what would I need? Folks have recommended getting an AceKard 2i or something similar, but is the card all I need? Would I need a memory card as well? Do I need a card reader on my PC to read the card / load stuff onto it?I'm a totaly newbie on this. I found a ROM for the game online, but I dont' know if it works.I'm hoping I can load the ROM and use the SAV file on 1 DSi but I'd like to get an idea of the hardware I'd need. More generally, I'd like to know how to use the SAV files.Any help is appreciated.Thanks,
Jim