WinNT4 to RHEL 4 + Samba + LDAP

[Peter Smith]

Hello,

I need to set up an RHEL 4 ES server as a BDC in an NT4 network.

The documentation that I can find suggests I need samba 3.0.11 or later
and openldap 2.3.

RHEL 4 has samba 3.0.10 and openldap 2.2.

Do I need to upgrade for this task?  If so, what stable versions should
I get, and where should I find them?

What are the implications of using newer versions than are standard for
the distribution?

Thanks for any help,
Peter Smith
WBM Pty Ltd.
Brisbane

ps. I sent this to the rhel-support list, but it seems there is nobody
home. :-(  PS.