Oh Coolz, Thanks a lot.
I also read lots of post how N5 and R4 were similar so i went on R4 site and they have a cheat editor, I'm going to test if it works.
I got a N5 card that works nice but the cheat file is all in Chinese characters and i can't read it ;(
Does anyone know how to put cheats manually to usrcheat.dat for n5?