Instead of solutions for a static IP, my network need for the Win XP VM under KVM is satisfied by an alternative (and ultimately better) alternative of a public bridged network. This was aided by the more up-to-date information on bridged KVM network contained in the following articles (for two different but KVM-compatible installations):

http://www.sgenomics.org/~jtang/blog...entific_Linux/
http://wiki.centos.org/HowTos/KVM

Under the bridged network, the VM is given a DHCP address but is accessible by its machine name.