Ok -- so I threw the Raph500 startup.txt into the /sdcard/andboot directory (and got rid of the old one).
I placed the SD-card into my phone, navigated to HaRET.exe, and ran it. The "HaRET: Booting Linux ..." bar ran through to completion, and then my system just froze. Nothing happened. The system became unresponsive.
I saw in your FAQ the note about some individual phones having marginal memory, so I removed the acpuclock.force_turbo=1 entry. Now I still get the "HaRET: Booting Linux ...", but the progress bar freezes half-way through and my system becomes unresponsive.
Any tips? I'm sure I'm doing something very dumb, but I can't find anything in the FAQ... and I haven't managed to get through all 362 pages of this thread yet