I am getting ready to start up grading servers. We bought the Open
Enterprise server package and I am Leaning towards the Linux side of
things. We currently have 3 Novell SBS 6.0 Sp5 servers. We plan on
swaping out a couple of servers.

Heres whats going to happen and the break down:
Server A (File/Print server holding Master replica) = will be replaced by
new server
Server B (Border Manager 3.6 Sp2a) = will be replaced by Server A
Server C (GroupWise 6.0 and Apache)= Remains the same

We plan to swap Server A first. Will cause a problem since the rest of
the Servers are SBS 6.0 and not 6.5 Sp3?

What would be the best plan of attack for this?