I followed those instructions TO A TEE!!!!
...and it didn't work. It scans for the file but never finds it, I guess. I checked and it's named correctly and I didn't add .ZIP. I also have ROM Manager and tried to switch to RA from Clockwork and it says I switched, but it didn't. When I go to HBOOT, the options are FASTBOOT, RECOVERY, CLEAR STORAGE, SIMLOCK and HBOOT USB. When I go to RECOVERY, it gives the options, BOOTLOADER, REBOOT, REBOOT BOOTLOADER and POWER DOWN.
Any ideas how to get RA running?
HTC Supersonic
Rooted with Unrevoked 3
S-OFF
HBOOT 2.10.0001
RADIO 2.15.00.11.19
Android 2.2
Kernel: 2.6.32.17
Software 3.70.651.1