That example is included in LabVIEW 6.1, but not in 7.0 and
later. You should be able to open that example in 6.1, save it,
and then reopen it in LabVIEW 7 without a problem. However, if
you are just wanting to do word serial write and read functionality,
the same effect can be had using the simple VISA Write and Read with an
open VXI VISA Resource. The word serial protocol is taken care of
by the NI-VXI driver automatically.