You could use the d2x installer: http://www.mediafire.com/?4yi13l95eyvk7jp
(Inastaller link is from the d2x topic?
Put on sd card and run from homebrewbrowser.
Choose v6, base 56 and slot 249. Covers almost every game.
Install base 57 slot 250 also. Those 2 should be what you need for almost...