How To deploy Windows 8 to a VHD and create a dual boot with the current installation of Windows XP (on C:)

Goal:  To deploy Windows 8 to a VHD and create a dual boot with the current installation of Windows XP (on C:)

I created a task sequence using the standard client deployment TS in MDT 2012 Update1. I added three steps that create a VHD, attaches it, formats and assign drive letter F. This is done during Windows PE session. I configured the TS to deploy the image to logical drive with letter F.

Issue: The TS sequence continues to just clean the partition that holds the XP installation and then installs Windows 8 on it.

Question: How to get MDT to install Windows 8 into the VHD and allow a dual boot with XP?

Thanks.