i have tried a bunch of ties with verry little luck i cant spend more time on this i will tag u now and u can be it.

u can go to xda-developers. they go in more details on how things work and ucanprobably find a bunch of different os over there.

the 4100 is similar to the htc but not enough for you to apply any os on it.

as far as my testig goes. i have installed manay different os from xda but none worked with me. i only changed the rom part didnt touch the bootstrap and i wont. that would render your pocket pc useless if it went wrog and the chances are probably high. i know verry little about the bootstrap and how it works. also if writes could be preformed with a corrupt bootstrap. i know its doable with one of the xda.

good luck post for any success.

the roms for the updated bootstrap and the rom are available. i posted them on xda and here somewhere not sur eif they are still on here.
let me know how things go and good luck