After a long elapsed period, I finally found a site which gave good instructions on how to move a VMware Windows 7 machine to KVM. That site is https://docs.google.com/document/d/1X8TaBP1v_rh8e2QXDGFmkmzoPB13Pvp2V0FQ630VCsU/edit. (Googled for qemu import qcow2).
After converting the image using
qemu-img convert -f vmdk -O qcow2 Windows7-1.vmdk /VMbackups2/Windows7-1.qcow2 the instructions turned out to be very simple.
Result! I now have a Windows 7 desktop running under KVM on Centos 7! Next I will convert Windows 8.
In other news, yesterday I started a new job as a solutions architect for HSBC in London.