SLES9 and pam_ldap (LDAP bind instead of search request)

How can one authenticate on Suse Linux 9.3 using LDAP bind instead of search requests?

The following post in 2004:

http://www.derkeiler.com/Newsgroups/comp.os.linux.security/2004-06/0258.html

was never replied to online and wondered if anyone has the answer. I am challenged with this task as well.

Thank you for any feedback,
BJP