Recover an image for a Triple boot

Hi,

Please bear with me on some questions and assistance needed.

The goal is to triple boot 2 Windows 7 partitions and an XP partition in one singular hdd.

I have a hard disk with 3 partitions. On that disk I have 1 Windows 7 partition(A), 1 XP partition(B) and a logical partition(Z). The boot folder for the Windows 7 partiton is in the XP partition. Now I have an existing Windows 7 image backup and I want to recover that to the empty logical partition (Z).

The existing Windows 7 image backup (Image size is only 20GB) came from a bigger drive(120GB) than the target partition(Z) which is 80GB.

How can I do that using ATIH 2011..? How can I make that boot to 3 partitions?