I want to upgrade our BM 3.7 to BM 3.8 and also upgrade the server OS.

Current config: Netware 5.1 SP6, Edir 8.7.0, BM 3.7 SP2
Hardware: P3 550, 1 Gb memory.

I can upgrade to Netware 6 or to 6.5, as we have an MLA.
Is Netware 6.5 the preferred version?
Should i also upgrade Edir?

Kind regards,