Ok, so I've rooted w/ unrEVOked 3.31 and S-OFF'd w/ ALphaRev 1.8. My next step would be to flash Amon-RA (I don't want ClockworkMod).
I've been instructed to put the flash_image file into my SD card root directory, and then to chmod it. Problem is, I'm a total noob to Android/ Linux, and...