Hey Guys, I got oregon Trail working.
I copied PomDS.nds, Apple2e.rom, and disk.rom to my root folder.
I downloaded the orgeon trail game which comes as 2 bin files (disk 1 and 2)
Just change the file extensions from .bin to .dsk for both files. copy anywhere on sd card.
When pomds.nds is loaded, choose the 2 disk images you renamed:
My example:
D0: otrail1.dsk
D1: otrail2.dsk
Click the pomDS logo, and select Reset Apple ][
OS will reload, and game should take a moment to load.
God I hope this helps someone.