I either misread your post or your misreading mine. I didn't use a prep cd. The only cd I have is my evox cd. The prep tool I used was the one I downloaded from the tut. (xhdprepa.exe) What steps did I miss. I feel I followed them exactly.
"Preparing Your New Hard Drive
The hard drive with which you choose to replace your Xboxs original drive can be brand new or can already have existing data on it. There are just a few steps that youll need to take in order to get it ready for use in the Xbox. Thanks to Ziki, this is now a 5 minute process rather than an all-nighter
1. Turn off your computer
2. Open up your computers case and find an available IDE spot
3. Connect the new HDD to an available IDE cable and an available power cable
4. Boot your computer. If you need to make any BIOS modifications with respect to the new HDD, make them now
5. Run the XboxHDPrepar utility
6. In the left hand window, select the drive that you intend to install in your Xbox
Note: Be VERY careful choosing the correct drive. If you select the wrong drive, you will almost certainly lose all system data on your computer.
7. Select the Only 1st 4096 sectors of partitions option in the Zeroing box
8. Click Prepare and let it do its magic!
9. Once the utility has finished, shut down your computer, remove the IDE cable and power cable from the HDD and take the HDD out of your computer case."