Need help / tips

I upgraded today to latest VBSEO and Sitemap Generator. I have approximately 300+ pages in the sitemap report and finally, Yahoo notification started working for me today after making some fixes.

My forum stats:
Threads: 15,354, Posts: 82,397, Members: 8,973

How do I optimize my site's seo results for Google/Yahoo? Where would I adjust the keywords, and anything else I should to to fully optimize the seo results?

I have these installed:
VBSEO
Sitemap Generator
VBSEO Conditional Signatures

And this plugin that says "Add keywords-description to each forum" (v 3.6.2). I did not touch that just yet, aside a few forums only.

Any suggested tweaks for the vbseo settings?

This is my htaccess file

Code:

RewriteEngine On

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

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

RewriteCond %{REQUEST_FILENAME} -f
RewriteCond %{REQUEST_FILENAME} (admincp|modcp|clientscript|cpstyles|images)/
RewriteRule ^(.*)$ $1 [L]

RewriteCond %{REQUEST_FILENAME}index\.php -f
RewriteRule ^(.*)$ $1index.php [L]

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

RewriteRule ^$ vbseo.php?vbseourl=index.php [L]
RewriteRule ^(archive/.*)$ vbseo.php?vbseourl=$1&%{QUERY_STRING} [L]

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

<Limit GET>
order deny,allow
</Limit>
<Files 403.shtml>
order allow,deny
allow from all
</Files>

php_flag suhosin.cookie.encrypt Off
php_value suhosin.request.max_vars 2048
php_value suhosin.post.max_vars 2048

<IfModule mod_security.c>
    SecFilterEngine Off
    SecFilterScanPOST Off
</IfModule>

Thanks in advance.

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