first of all,wiping and flashing roms,or restoring backups does not affect anything on your sd card,so im a little confused by exactly whats going on from the information in your post.i assume "restored to the original date of root" means that you restored a nandroid backup.
i have no idea what an "update to SD card" is. assuming you are refering to a system update,dod you accept it? or you just rebooted?
safe mode is not going to help you.
power off,hold vol down while pushing power.
when your phone gets to HBOOT(white screen with colored letters) does it still say s-off at the top? if it does,navigate to and select recovery withthe vol rocker and power button. hopefully this takes you to clockwork recovery.
if it does,then you just need to wipe data/cache/dalvik cache and restore a backup(dont start it in safe mode) or flash a new rom.
if you get a triangle and ! then you can replace your recovery with one from the above sticky thread,rename to PG05IMG and flash it in hboot,as long as youre s-off.
if you are now s-on,youre somewhat hosed,sorry.
you can try doing a factory reset in HBOOT,if that doesnt work you may need to flash an ruu to get it working again.