[CentOS-virt] CentOS6 virtio?

[Lars Hecking]

 Are there any updated instructions for installing Windows virtio drivers on
 a KVM Windows XP vm under CentOS6? The virtio .iso directory structure is
 slightly different from what is described in the RHEL6 virtualisation
 manual, and when I attempt to install e.g. the viostor driver, the device
 manager cannot find anything better than what is already installed. I tried
 each of the Wlh/Wnet/Wxp/XP directories.