shema and ldapadd problem

[berrebi remy <remy.berrebi@kelkoo.net>]

hi i suppose that i made a mistake because i tryed to use PHP3 script to
manage my LDAP (in fact does any one can explain me easyly how ldap.conf
work?)
so after one day i try to use the command line ldapadd with LDIF file
...

i have this message
" ldapadd: no attributes to change or add (entry cn=dupont, o=essai,
c=FR) "

for this command
ldapadd -D "cn=Manager, o=essai, c=FR" -W -f person.txt 

here is my file:
dn: cn=dupont, o=essai, c=FR

sn: toto

telephoneNumber: 0101010101

objectclass: person

and my config files:
ldap.conf:
BASE    dc=serval, dc=essai, dc=net

HOST    serval.essai.net serval localhost
PORT    389

#SIZELIMIT       12
#TIMELIMIT      15
#DEREF          never

sldap.conf:
#
# See slapd.conf(5) for details on configuration options.
# This file should NOT be world readable.
#
include         /etc/openldap/slapd.at.conf
include         /etc/openldap/slapd.oc.conf
schemacheck     off
#referral       ldap://127.0.0.1/

pidfile         /var/run/slapd.pid
argsfile        /var/run/slapd.args

#######################################################################
# ldbm database definitions
#######################################################################

database        ldbm
suffix          "dc=serval, dc=essai, dc=net"
suffix          "o=kelkoo, c=FR"
rootdn          "cn=Manager, dc=serval, dc=essai, dc=net"
rootdn          "cn=Manager, o=essai, c=FR"
rootpw          secret
# cleartext passwords, especially for the rootdn, should
# be avoid.  See slapd.conf(5) for details.
directory       /var/lib/ldap

pliz help me...

ps:where can i found outlook and netscape object shema?