I'm off to play COD4 for abit now so i'll leave a list of things you need to make it work.
1) restore the drive back to it's original state:
dos > iprep v6.1
rsam xxxxxxx xxxxx
("x" being the digits you used when taking the original dump)
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2) obtain the latest firmware & "re-prepare" your flash key/floppy
"make sure you have your previous dump backed up just incase
"
win > Iprep v6.1 with
Samsung.iXtreme.1.4.rar // prepare destination
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3) redump the drive & let iprep build the new hacked firmware
dos > iprep
--dsam xxxxxxx xxxxx
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4) into windows again & back the firmware up
then...
FW toolbox 4.6 //
--change the key
--spoof the drive
Note:
make sure you edit the hacked firmware... not the original dump!
it's the hacked firmware you will be flashing remember

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5) back into dos & flash the spoofed & key modified firmware
dos > Iprep v6.1
--fsam xxxxxxx xxxxx