if you still have the exploit on your xbox, just pop in the game one more time and redo it all from there
"restore M$" option or "remove softmod" will help
then reboot and reload the game, remod your xbox.
you're not at a totall loss, BUT you NEED to put the backup folder with the "eeprom.bin" on your PC
It will save you if you get in deeper trouble.
if you need more help the chat room and our mod pros can help you step by step.
http://www.smdepot.net/irc/chat.phpgood luck
BOOST