ssc: ldap, entering base domain

In Sametime Server Console I am trying to configure ldap. It is asking me
for a "LDAP base entry".
qsHell allows me to do this
ldapsearch -h ldap02.dekko.com -b "O=DEKKO" -s one "cn=*guebard*"
so I figured enter in "O=DEKKO". Says I have to enter in Advanced stuff.
Ok. For Home Sametime server: I enter in sametimeserver. What do I enter
in for Membership attribute?

Also, what about this error?
AIDSC0091E: LDAP configuration failed validation:
- User object class: inetOrgPerson

ldapsearch -h ldap02.dekko.com -b "O=DEKKO" -s one "cn=*guebard*"

CN=Rob Guebard,O=DEKKO
cn=Rob Guebard
mail=robg@nospam.dekko. com
displayname=Rob Guebard/DEKKO
notesmail=Rob Guebard/DEKKO
objectclass=dominoPerson
objectclass=inetOrgPerson
objectclass=organizationalPerson
objectclass=person
objectclass=top
department=1600 - It
location=1000 - EXECUTIVE
l=Kendallville
st=IN
c=USA
dominocertificate=NOT ASCII
givenname=Rob
sn=Guebard
uid=robg@nospam.dekko. com
maildomain=DEKKO
mailserver=CN=NOTES01,O=DEKKO
mailfile=mail\rguebard
sametimeserver=CN=SAMETIME01
$


Rob Berendt