First things first, you are going to need to download these files.
flashrec --
http://zenthought.org/system/files/a...20091107-2.apk
Amon RA Recover Image 1.2.3 --
http://www.fileden.com/files/2007/2/...roc-v1.2.3.img
Fresh .05 Rom
http://forum.ppcgeeks.com/showthread.php?t=96913
Do not extract the Rom zip file, it needs to stay in the zip.
Ok, lets do this in steps, should make it easier:
Step 1: Mount the sd card and place all the files downloaded onto the root of the sdcard.
Step 2: Download some sort of file manager, ex Estrongs File Manager, and run/open the flashrec apk.
Step 3: Once it's finished installing, unplug the usb cable, run the app, and hit the button, "backup recovery image". If you get an error, try rebooting your phone, make sure the usb cable is unplugged.
Step 4: Exit app, and mount the sd card again, and move recovery-backup.img to your desktop, then rename recovery-RA-heroc-v1.2.3.img to recovery-backup.img
Step 5: Unmount sdcard, unplug usb cable, and go back into the flashrec app(should be named recovery flasher in all programs list)
Step 6: hit restore backup image. Once finished flashing, power down phone.
Step 7: After you power down your phone, hold the Vol Down button, then hold down the power button. Phone should boot into hboot. Press home for recovery.
Step 8: To ensure you have a backup of your phone before we continue, do a nandroid v2.2 backup.
Step 9: After the nandroid backup is complete, you can now choose apply "sd card update choose", and choose the Fresh rom
Step 10: Reboot your phone and you should be all set.
If it fails Start over by first rebooting then starting over