4shared.com - online file sharing and storage - download RUU_Sapphire_HTC_Europe_3.05.401.3_release_signed_NoDriver.exe
try this rom file.
If you have constant security S-OFF, it accepts all ROMs and HBoot and RUU. Probably you have engineering Magic (not Hboot, the whole device)
1. Try this...
If fastboot can detect phone, so try flash Amon_RA Hero recovery http://forum.xda-developers.com/showthread.php?t=561124
fastboot flash recovery recovery.img
(recovery.img or other filename must be in folder with fastboot.exe)
Then start into recovery (Home + Power) and flash CursorSense
If you need original ROM (without root), so search forum for it
(it has been posted already). Just get rom1.zip (system.img, userdata.img and more...) and flash it (Saying again: official doesn't contain root)
2. Or try run another RUU
b.r