Importing a VHD into Parallels Desktop 6 on the Mac

Question

I've looked everywhere for this but can't find an answer, so:

I have a VHD image created for me by a client -- he installed Win7 on a machine and then used a tool from SysInternals to create a VHD which he shared with me and a colleague.

I can mount the VHD on my Mac using Parallels Mounter and see the contents, but I can't for the life of me see how to import the VHD to create a new Parallels VM from the VHD file. Parallels Transporter seems to want to create a VM from a live Windows box, which this isn't.

My colleague is able to use VirtualBox to create a VM from the VHD and I want to do the same using Parallels Desktop 6.

Any ideas?

Thanks in adv - Michael