Our current Zenworks platform is Zenworks 4.0.1B on a Netware 5.1 server
running SP7 and Edirectory
All 7 of my Netware 5.1 server are (sigh.)
I need to get my current Zen server up to Netware 6.5 and Zen 7 on a NEW
Then upgrade all of my other servers to Netware 6.5.

Looks like from the documentation that Zenworks 7 has not been "tested" on
Netware 5.1. Also Zen 4.01 is not compatible with Netware 6.5.

That would suggest that my upgrade would go as follows.

Hardware migration of current production Zen 4.01B server to NEW server
hardware platform.
Once Zen 4.01B is running on new server hardware platform, upgrade
server to Netware 6.0, since from the documentation I have seen 6.0 has
been tested with both Zen 4 and Zen 7.
Then upgrade Zen 4.01B to Zen 7 sp1.
Finally, upgrade my Zen server to Netware 6.5 sp5.