i made a rom image from my MP 2100 its 8+mb in size to use for einstein, i had to use a beta version of it to run on my G3 and had to set the date back so i could use it. the one you can find now wont work on my G3 or G4.

other than that i dont know how to convert the newton OS debug images to use in Einstein. i would just find someone that has a rom image