Xbox "Memory Card" problem

Ok, this is going to sound a LOT noobish, so don’t flame me yet! I’m not just barging in here, yelling “I R DA LEET! s0fTm0D mah xb0x!!!”, im just stuck. I used the usb-flashdrive method of transfering files, but whenever i go into action replay, it wont find my card. Also, I tried applying the Datel Xbox Actionreplay Drivers to it, but it will not let me change them. Finally, my card says the filesystem is “RAW”, is that right? Any help would be appreciated!
-Joel