Jaguar’s LDAP and Entourage

According to https://www.afp548.com/Articles/Jaguar/ldapcontact.html , Entourage should be able to access email & phone number info from the Open Directory LDAP server; however, that is not my experience. Address Book and Mail.app work just fine, with or without the "cn=users,dc=mydomain,dc=edu" searchbase, but with or without the same searchbase, Entourage gives me an error "No entries in the directory service match the search criteria" for any search I perform. Anybody have any ideas?