It appears my problems are linked to the fact that the LDAP fields are
not linked to the nnm NDS fields. I have manually associated the
fields as per the following link:-

Unfortunately this still does not work and I still get -602 errors in
+LDAPed dstrace. Is the initial install of Messenger supposed to
make these associations? Is there anyway of re-making them?

Matt Hudson,
Principle Network and Communications Officer,
Burnley Borough Council.
CNA 6/5/4, CNE 5/4.