Ninjapass x9tf help

I got a new micro sd for my ninjapass because my old one is full of games we still play. I formatted the card and downloaded one of my other games on it to see if I did it right. all worked fine. I have downloaded a couple of games from this site and extracted them to be nds files from the rar files. and created a sav file. when I try to bring them up on my ds i get a loading saved game message then the screen goes white and nothing else happens. i am not very techno, but I need help getting the games to work. games are my farm, magicians quest and eco creatures. thx

...Until you came along I never heard of the ninja pass :(Well, what sizes were the save files?They come in many sizes-not all are the same.I cannot help anymore-I'm an acekard user :)

Make sure you have the latest firmware. http://www.linfoxdomain.com/ds/ Otherwise, I'd suggest you'd buy a better flashcart.