vBCMS and vbseo [with problems]

# Comment the following line (add '#' at the beginning)
# to disable mod_rewrite functions.
# Please note: you still need to disable the hack in
# the vBSEO control panel to stop url rewrites.
RewriteEngine On
# Some servers require the Rewritebase directive to be
# enabled (remove '#' at the beginning to activate)
# Please note: when enabled, you must include the path
# to your root vB folder (i.e. RewriteBase /forums/)
RewriteBase /forums/
RewriteCond %{HTTP_HOST} !^www\.joaobarroca\.net
RewriteRule (.*) JoaoBarroca.Net [L,R=301]
RewriteRule ^((urllist|sitemap_).*\.(xml|txt)(\.gz)?)$ vbseo_sitemap/vbseo_getsitemap.php?sitemap=$1 [L]
RewriteCond %{REQUEST_URI} !(admincp/|modcp/|cron)
RewriteRule ^((archive/)?(.*\.php(/.*)?)?)$ 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]

'^index.php\?area=vbcmsarea_home$' => 'vbcms/'
'^index.php\?do=morenews$' => 'vbcms/morenews'
'^index.php\?area=vbcmsarea_content&name=(.+)&contentid=(\d+)$' => 'content/$1-$2.html'
'^index.php\?area=vbcmsarea_content&do=searchcontent$' => 'content/search'
'^index.php\?area=vbcmsarea_links$' => 'links/'
'^index.php\?area=vbcmsarea_links&do=showcat&catid=(\d+)$' => 'links/category-$1.html'
'^index.php\?area=vbcmsarea_links&do=showlinkentry&linkid=(\d+)&catid=(\d+)$' => 'links/linkentry-$1-$2.html'
'^index.php\?area=vbcmsarea_links&do=showlinkentry&linkid=(\d+)&catid=(\d+)&goto=lastcomment$' => 'links/linkentry-$1-$2-lastcomment.html'
'^index.php\?area=vbcmsarea_links&do=search&show=newlinks$' => 'links/newlinks'
'^vbcms.php\?area=vbcmsarea_links&do=search$' => 'links/search'

RewriteBase /

RewriteEngine On

RewriteCond %{REQUEST_FILENAME} !/forums/
RewriteCond %{QUERY_STRING} !vbseourl=
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ /forums/vbseo.php?vbseourl=$1&vbseorelpath=../&%{QUERY_STRING} [L]

RewriteCond %{REQUEST_FILENAME} !/forum/
RewriteRule ^(.*\.php)$ /forums/vbseo.php?vbseourl=$1&vbseorelpath=../&%{QUERY_STRING} [L]