If the guy making that backup disk had his stuff together, it's bootable to Ghost or at least a Ghost menu. You would NOT access it from within Windows, in that case. It must be able to restore your Ghost Backup Image file even if your hard drive had crashed and was replaced with a new and blank drive.
In Ghost you're probably wanting to do a
Disk
from Image
restore.
The source of the Restore Data is of course your CD drive.
That would be "
CD R1 HL-DT-STCD-ROM
" in your post.
Then it's going to ask you for the "TO" drive and that would be your C: drive.
If your OS drive was formatted normally then it will be your NTFS drive.
Don't rely too much on the drive letters presented by Ghost. NTFS drives are looked at differently than IDE drives.
All your questions would be answered if you could just talk to the guy that made the backup.
There are many ways to make that backup CD.
Good Luck,
The Shadow