look at your first post on this threa right above it i have posted the info needed to get the original rom file for the ppc 4100
its the latest one i go tthose from audiovox on a cd with a letter wich is posted onthis thread i believe.

if u are going to flash a differe operating system on this phone i dont think u should play with the bootstrap file (the small file)

u cna download the rom file u can extract it with dump rom u can do wahtever u want with it. u can also flash it back but that wont change a thing unless u get a different os
let me know if u have trouble downloading the file and do let me know if you found a good second edition image. post here tell us what u find out.
thanks for taking interest.