indexed still going down for this week

[badawidollah]

RewriteEngine On

RewriteBase /forum/

RewriteCond %{HTTP_HOST} !^www\.nusantaraku\.org
RewriteRule (.*) http://www.nusantaraku.org/forum/$1 [L,R=301]

RewriteRule ^((urllist|sitemap_).*\.(xml|txt)(\.gz)?)$ vbseo_sitemap/vbseo_getsitemap.php?sitemap=$1 [L]

RewriteRule ^/?(af|sq|ar|be|bg|ca|zh-CN|hr|cs|da|nl|en|et|tl|fi|fr|gl|de|el|iw|hi|hu|is|id|ga|it|ja|ko|lv|lt|mk|ms|mt|no|fa|pl|pt|ro|ru|sr|sk|sl|es|sw|sv|zh-TW|th|tr|uk|vi|cy|yi)/$ vbenterprisetranslator_seo.php?vbet_lang=$1&redirected=/forum/index.php [L,QSA]
RewriteRule ^/?(af|sq|ar|be|bg|ca|zh-CN|hr|cs|da|nl|en|et|tl|fi|fr|gl|de|el|iw|hi|hu|is|id|ga|it|ja|ko|lv|lt|mk|ms|mt|no|fa|pl|pt|ro|ru|sr|sk|sl|es|sw|sv|zh-TW|th|tr|uk|vi|cy|yi)/(.*)?$ vbenterprisetranslator_seo.php?vbet_lang=$1&redirected=/forum/$2 [L,QSA]

RewriteCond %{REQUEST_URI} !(admincp/|modcp/|vbseo_sitemap/|cron)
RewriteRule ^((archive/)?(.*\.php(/.*)?))$ vbenterprisetranslator_seo.php [L,QSA]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !^(admincp|modcp|clientscript|cpstyles|images)/
RewriteRule $ vbenterprisetranslator_seo.php [L,QSA]

RewriteCond %{REQUEST_URI} !(admincp/|modcp/|cron|vbseo_sitemap)
RewriteRule ^((archive/)?(.*\.php(/.*)?))$ vbseo.php [L,QSA]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !/(admincp|modcp|clientscript|cpstyles|images)/
RewriteRule ^(.+)$ vbseo.php [L,QSA]

is it correct?

and for url in sitemap
which one must choose,

/en/ or ?language=en

i am using default one now, but adding this below <?php
because cant run without this code

require_once(DIR. '/includes/vbenterprisetranslator_functions_vbseo.php');
define('DIR', dirname(__FILE__).'/../');

Sitemap stats
Total URLs: 331,647
Indexed URLs: 9,047

thanks