permalink with "tag" element don't work ...

[lucaweb]

Hello,

i'm working on a Multisite installation of wordpress 3.1.3 with subdomine, using genesis 1.6 and church theme, i tried to set permalink using element /%tag%/ but in the url it always show /%tag%/ and not the name of my tag, in other words it don't traslate the code ...

i tried also with /%category%/, /%postname%/, /%author%/ and it work correctly ...

i set the .htaccess file as the multisite installation required in this way:

PHP Code:

RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]

# uploaded files
RewriteRule ^files/(.+) wp-includes/ms-files.php?file=$1 [L]

RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ - [L]
RewriteRule . index.php [L] 


.. as i a said i have the problem just with /%tag%/ !!

thank's for any help