ops nav is pretty much called iSeries Navigator now, or iNav for short
(may help your search).
It is a free product. It may be loaded from the standard CD's that come
with your i. It is a part of iSeries Access. Some parts (not iNav) of
iSeries Access are chargeable.
Updates are available from:
To see what level you are currently at:
Start, Programs, IBM iSeries Access for Windows, IBM iSeries Access for
Occasionally some clod thinks the only part of IBM iSeries Access is 5250
emulation and goes into 5250 emulation and does a Help, About and finds
out that 5250 is running 5.8 or some such thing and thinks that is their
level of iSeries Access.