Looking at epel-testing, while libguestfs-* 1.0.57-2 is available,
virt-inspector does not appear to be.
http://cvs.fedoraproject.org/viewvc/rpms/libguestfs/EL-5/libguestfs.spec?...
shows the virt-inspector bits commented out, and
http://cvs.fedoraproject.org/viewvc/rpms/libguestfs/EL-5/libguestfs.spec?...
doesn't appear to have an explanation.
Wuzzup? :)