[dai-kun]

READ the 2nd post.

If you have vbseo, put the VBET code BEFORE the vbseo code.

OK This is mines, but you have to make changes if your forum is on subdirectory:
The code in red needs to be replaced with your subdirectory, my forum is located in http://domain.com/forum/. So change it accordingly.
The code in blue is from vBSEO.

##########vBET
#rules for SEO translation links with vbSEO (have to be included before all rules to vbseo.php)

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

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


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

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

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]
##########