No, that's not what happened here..
I just found out... The problem is that I was trying to write the ghost file to an NTFS-formatted partition. You can use Ghost to make an image from an FAT32 or NTFS formatted disk/partition, but you can not write the image to an NTFS partition, only to an FAT formatted disk.
This, however is NOT in the manual...

Got the answer from another ghost-user in another forum.
Apparently Ghost Enterprise is the only version that supports writing to NTFS partitions. So.. I bought the wrong version...I have only NTFS formatted disks now...
I'm gonna try to get a refund and buy the enterprise edition now.. In the meantime, I used Partition magic to create a 3GB FAT#@ partition to write my ghost files to, works perfectly.