Mine

<VirtualHost 192.168.1.1:80>

    #
    #User vu2007
    #Group vu2007
    #

    #
    #SuexecUserGroup vu2007 vu2007
    #

    ServerAdmin     root@btsig.mydomain.com
    DocumentRoot    /var/www/virtual/btsig.mydomain.com/htdocs

    ServerName      btsig.mydomain.com
#    ServerAlias     www.btsig.mydomain.com btsig.mydomain.com *.btsig.mydomain.com
    ServerAlias     www.btsig.mydomain.com btsig.mydomain.com

    ErrorLog        /var/log/apache2/users/btsig.mydomain.com-error.log
    TransferLog     /var/log/apache2/users/btsig.mydomain.com-access.log

    CustomLog       /var/log/apache2/btsig.mydomain.com-traf.log traff
    CustomLog       /var/log/apache2/btsig.mydomain.com-combined.log combined

    Alias /errors   /var/www/virtual/btsig.mydomain.com/errors/

    ErrorDocument 401 /errors/401/index.php
    ErrorDocument 403 /errors/403/index.php
    ErrorDocument 404 /errors/404/index.php
    ErrorDocument 500 /errors/500/index.php

    # httpd dmn entry cgi support BEGIN.
    ScriptAlias /cgi-bin/ /var/www/virtual/btsig.mydomain.com/cgi-bin/
    <Directory /var/www/virtual/btsig.mydomain.com/cgi-bin>
        AllowOverride None
        #Options ExecCGI
        Order allow,deny
        Allow from all
    </Directory>
    # httpd dmn entry cgi support END.

    <Directory /var/www/vhcs2/gui>
        php_admin_value open_basedir "/var/www/vhcs2/gui/:/etc/vhcs2/:/proc/:/var/www/virtual/:/tmp/"
    </Directory>

    # httpd dmn entry PHP2 support BEGIN.
    php_admin_value open_basedir "/var/www/virtual/btsig.mydomain.com/:/usr/share/php/:/tmp/"
    # httpd dmn entry PHP2 support END.

    <Directory /var/www/virtual/btsig.mydomain.com/htdocs>
        # httpd dmn entry PHP support BEGIN.
        # httpd dmn entry PHP support END.
        Options Indexes Includes FollowSymLinks MultiViews
        AllowOverride All
        Order allow,deny
        Allow from all
    </Directory>

</VirtualHost>