Error 262 Update Error

[slmclarengt]

Yes Activesync file transfer works fine.

So far I have tried this ROM update/Unlocking on 3 different Operating Systems. Vista Business x64, XP Home 32, and Windows 7 32. Unfortunately W7 did not like my phone being in bootloader (no driver yet for that I guess built in), both other OSes had the same problem (update error) with the one exception being when I used an actual Sprint-made ROM. It almost makes me think Sprint practically put a DRM on my phone so only Sprint-made (signed) ROMs would be flashable because I cannot even flash the unlocker...

Unlikely but how else would I solve this anyway?

Slmclarengt