Bad Magic Number

Dear All,
i have a SCSI hard disk drive i'm installing on it solaris 5 and the workstation is sun sparc, i made an image of this H.D using Norton Ghost 6, so i took off the SCSI H.D from the sun workstation and put it on a Compaq server then i booted the server from the Norton Ghost floppy disk and i saved the image file on the server (*.gho), when i got back to the SUN workstation and then installed the SCSI H.D, it gave me the message "Bad Magic Number", so i want to get the system back as it was without loosing the data. please tell me the right way to recover the system back without loses.
Thanks and regards