freebsd 4.9 stable and qmailadmin-devel (1.2.1)

[Dott. Andrea Riela]

HI folks,

I need your support about qmailadmin and freebsd 4.9.
I've installed qmailadmin-devel from ports (with some differences, like
--enable-spam-command, but I've tried with the original port, the same
problem), and when I try to connect with web interface, I can login, but
when I try to use a link (for "new account", or whatever), I logout
automatically.

this is my make conf:

make CGIBINDIR=www/data/sites/nesys.it/cgi-bin WEBDATADIR=www/data
WITH_MODIFY_QUOTA=yes WITH_DOMAIN_AUTOFILL=yes WITH_HELP=yes
WITHOUT_IPAUTH=yes
(WITH_ANTISPAM=yes ANTISPAM_COMMAND="| maildrop /etc/mailfilter"
WITH_USERPERPAGE=yes USERPERPAGE=50)

that is:

./configure --enable-htmldir=/usr/local/www/data
--enable-htmllibdir=/usr/local/share/qmailadmin
--enable-cgibindir=/usr/local/www/data/sites/nesys.it/cgi-bin
--enable-cgipath=/cgi-bin/qmailadmin --enable-imageurl=/qmailadmin/images
--enable-imagedir=/usr/local/www/data/images/qmailadmin
--enable-modify-quota=Y --enable-domain-autofill=Y --enable-help
--disable-ipauth
(--enable-maxusersperpage=50 --enable-modify-spam=Y --enable-spam-command="|
maildrop /etc/mailfilter")

I've seen my fstab (because qmailadmin needs "nosuid"):

/dev/ad0s1g		/usr	ufs	rw	2	2

I've tried with source, but same problem (that is: isn't a qmailadmin
problem).
I've checked my apache conf (default ServerRoot "/usr/local" + virtual
hosts). An example of vh:

[...]

    Alias /qmailadmin/images/ "/usr/local/www/data/images/qmailadmin/"
    <Directory "/usr/local/www/data/images/qmailadmin">
        Options Indexes MultiViews
        AllowOverride None
        Order allow,deny  
        Allow from all    
    </Directory>

[...]

<VirtualHost 192.168.1.11:80>
ServerName www.nesys.it
ServerAdmin webmaster at nesys.it
SSLDisable
Port 80   
DocumentRoot /usr/local/www/data/sites/nesys.it
ErrorLog /var/log/apache/nesys.it-error_log
CustomLog /var/log/apache/nesys.it-access_log combined RewriteEngine on
RewriteRule ^/cgi-bin/qmailadmin https://www.nesys.it/cgi-bin/qmailadmin
[R=permanent]
ScriptAlias /cgi-bin/ "/usr/local/www/data/sites/nesys.it/cgi-bin/"
   <Directory "/usr/local/www/data/sites/nesys.it">
               Options -Indexes 
               AllowOverride All
               Order allow,deny
               Allow from all
   </Directory>
   <Directory "/usr/local/www/data/sites/nesys.it/cgi-bin">
               Options ExecCGI -Indexes
               AllowOverride All
               Order allow,deny
               Allow from all
   </Directory>
</VirtualHost>

<VirtualHost 192.168.1.11:443>
ServerName www.nesys.it
ServerAdmin webmaster at nesys.it
Port 443
DocumentRoot /usr/local/www/data/sites/nesys.it
RewriteEngine on
RewriteRule ^/cgi-bin/qmailadmin - [S=1]
RewriteRule ^(.*) http://www.nesys.it/$1 [R=permanent] ScriptAlias /cgi-bin/
"/usr/local/www/data/sites/nesys.it/cgi-bin/"
SSLEngine on
SSLCertificateFile /usr/local/www/certs/nesys.crt SSLCertificateKeyFile
/usr/local/www/certs/nesys.key ErrorLog /var/log/apache/nesys.it-error_log
CustomLog /var/log/apache/nesys.it-access_log combined
   <Directory "/usr/local/www/data/sites/nesys.it/cgi-bin">
               Options ExecCGI -Indexes +FollowSymLinks
               AllowOverride All
               Order allow,deny 
               Allow from all   
   </Directory>
</VirtualHost> 

vpopmail and qmail are ok, I've used vqadmin to add domains, withou
problems.
I've tried to install qmailadmin with --disable-ipauth too, but nothing.

What could I do? Have you got any advice for me?
I hope you could help me.
thanks for your support
Regards
Andrea