first thing i would do in this case is backup the eeprom to your computer. im sure it is already on the disc you have, but there is something to be said about having a copy on the computer for easy transfer. and i may come in handy depending on how you go about doing this.
now i have never used the clone option on XBOXHDM. so i am not going to advise you on that. if you wish to persue that line, then someone else will have to give you thier guidence.
there are a few things to consider when using XBOXHDM 1.9. it requires that you have an older computer in which the HDD and DVD drive are both IDE and pluged into the primary and secondary IDE slots on your motherboard.
if you do not have this kind of older hardware, you can use XBOXHDM 2.2(USB edition). it is made to boot from USB and has fewer steps.
XBOXHDM 2.2 tutorialmake sure you add your eeprom.bin in step 6 of building the USB
when you get to the hotswap section, you can ignore the part about forcing an error 12. you would simply want to plug your new HDD into your xbox power supply and boot it up.then plug the IDE into your computer after post as is suggested in step 2.
when it is finished building the new drive, you will need to go back to the locking menu. redo steps 3,4,5, and this time at step 6 you would choose option 3 to lock the drive. then plug your box back together and you have a new modded 160GB HDD.