My rewrite Rules:
RewriteCond %{REQUEST_URI}	!index.php
RewriteCond %{REQUEST_URI}	!admin.php
RewriteRule ^/?([^/]+)?(/[^/]+)?(/[^/]+)?/? index.php?lan=$1&page=$2&id=$3 [PT]
RewriteRule ^/?([^/]+)?(/[^/]+)?(/[^/]+)?(/[^/]+)?/? admin/admin.php?lan=$1&page=$2&action=$3&id=$4 [PT]