Hi Kai,
Unfortunately, I don't think what you are trying will work.
The reason being, the sze1=x,sze2=y switch only resizes partitions that are already in the image file.
In your case, since your source image only contains 1 partition, it will only be able to resize the first partition.
You have 2 options here. (as far as I can see)
1) Re-create your source image to have 2 partitions.
2) Run restore operation twice.
-clone,mode=restore,src=g:\2prtdisk.gho,dst=1,sze1=60P
-clone,mode=prestore,src=g:\ntfs.gho:1,dst=1:2
The first restore restores your model image, the 2nd restores a blank NTFS image partition, achieving your desired goal of having 2 partitions. (You will have to take an image of a blank NTFS partition named ntfs.gho first though.)
Hope that helps
Chris