N5DS Cheats

Hi everyone,
I have a questions regarding N5DS (http://www.dsn5.com/)
How do I use cheats on it? I have been able to use some cheats using N5DS Alienware 1.27 bu they are in Japanese, I have tried downloading the cheat database and renaming it to BRAIN.DAT but it doesn't work.
Using the original firmware I cannot see the cheat option for any game.Any help on this will be greately appreciated.Rameez.

cheats.gbatemp.net Put usrcheat.dat in _system_ folder.