Multisite 404 Not Found

Hello people,

i have browsed through the wp support, and other sites as well regarding this problem, though i still havent found any solution.

I am trying to setup a site using subdirs.

http://ikw.inf.elte.hu/ictlabs # but the page says: 404 Not Found

Here is my htaccess file:

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]

# uploaded files
RewriteRule ^([_0-9a-zA-Z-]+/)?files/(.+) wp-includes/ms-files.php?file=$2 [L]

# add a trailing slash to /wp-admin
RewriteRule ^([_0-9a-zA-Z-]+/)?wp-admin$ $1wp-admin/ [R=301,L]

RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ - [L]
RewriteRule  ^[_0-9a-zA-Z-]+/(wp-(content|admin|includes).*) $1 [L]
RewriteRule  ^[_0-9a-zA-Z-]+/(.*\.php)$ $1 [L]
RewriteRule . index.php [L]
</IfModule>
# END WordPress

# Change PHP memory limit, time limit,
# max post size, and max upload file size
php_value memory_limit 256M
php_value max_execution_time 300
php_value upload_max_filesize 32M
php_value post_max_size 32M

I modified my httpd config files AllowOverride instances, modified from None to All.

Any other suggestion would be appreciated.

Thank you in advance,

Z,
Hungary