kolab web admin page access

[Fausto Zorzi - NetiX s.r.l.]

Hi, I have just installed ZfOS kolab-20040503-2.1.0 on my Fedora Core 2, 
using obmtool.
The build and install seem to have worked, except it complains postfix 
is not running... However, I was trying to access the admin page through 
https://[hostname]/admin: I get the login access dialog, I insert as 
username and password "manager" and the password it asked me during the 
installation (the same I can find in /kolab/etc/kolab/kolab.conf in the 
bind_pw entry), but it didn't work.
I tried to check the Apache conf file /kolab/etc/apache/apache.conf and 
in the block of code about the /admin/ directory I have this:

<Directory "/kolab/var/kolab/www/admin">
  AllowOverride None
  Options None
    Order allow,deny
  Allow from all
  AuthName "Kolab Admin Area"
  AuthType Basic
    LDAP_Server 127.0.0.1
    LDAP_Port 389
    # temporary : openldap changed from 2.1.9 to 2.1.12
    # anonymous bind with dn is nolonger allowed
    # unfortunately mod_auth_ldap seems to exactly do so
    # need to investigate ...
    Bind_DN "cn=nobody,dc=host,dc=domain,dc=lan"
    Bind_Pass "epW2rM.lhuxxo"
    Base_DN "dc=host,dc=domain,dc=lan"
    UID_Attr uid
    require valid-user
    SSLRequireSSL
</Directory>

Then I tried to change the Bind_DN entry with cn=manager and the plain 
manager's password in Bind_Pass: I can get in, but not as administrator, 
just as plain user, or at least I don't see links to the administrators' 
functions. It also writes on the page "could not bind anonymously" more 
than once.
In /etc/var/apache/log/apache-error.log I have the following:

"...
[Tue Sep 14 11:54:36 2004] [error] PHP Warning:  ldap_bind():  Unable to 
bind to
  server: Invalid credentials in 
/kolab/var/kolab/www/admin/include/ldap_utils.ph
p on line 90
[Tue Sep 14 11:54:36 2004] [error] PHP Warning:  ldap_bind():  Unable to 
bind to
  server: Invalid credentials in 
/kolab/var/kolab/www/admin/include/ldap_utils.ph
p on line 90
[Tue Sep 14 11:54:36 2004] [error] PHP Warning:  ldap_bind():  Unable to 
bind to
  server: Invalid credentials in 
/kolab/var/kolab/www/admin/include/ldap_utils.ph
p on line 64
[Tue Sep 14 11:54:36 2004] [error] PHP Warning:  ldap_bind():  Unable to 
bind to
  server: Invalid credentials in 
/kolab/var/kolab/www/admin/include/ldap_utils.ph
p on line 90
[Tue Sep 14 11:54:36 2004] [error] PHP Warning:  ldap_bind():  Unable to 
bind to
  server: Invalid credentials in 
/kolab/var/kolab/www/admin/include/ldap_utils.ph
p on line 44
[Tue Sep 14 11:54:36 2004] [error] PHP Notice:  Undefined variable:  cn 
in /kola
b/var/kolab/www/admin/include/ldap_utils.php on line 56
[Tue Sep 14 11:54:36 2004] [error] PHP Warning:  ldap_bind():  Unable to 
bind to
  server: Invalid credentials in 
/kolab/var/kolab/www/admin/include/ldap_utils.ph
p on line 21
[Tue Sep 14 11:54:36 2004] [error] [client 192.168.11.193] File does not 
exist:
/kolab/var/kolab/www/favicon.ico
..."

Moreover, is there a way to check what went wrong with postfix?

To uninstall kolab, do I just have to remove the /kolab directory? I 
also think I should do some cleanup operations with ldap, because when I 
do the install and build from scratch it says it can write some lines.

Can you please help me?

Thank you in advance