All in One SEO Broken - Due to .htaccess? All in One SEO Pack Troubleshooting Forum

My All in One SEO plugin seems to be broken, and I think it is a result of me modifying the .htaccess on accident. My blog is http://www.pokersite.org/news/, and in the backend everything appears fine for the All in One SEO plugin. However, when you visit the blog there is no homepage title, and the posts have strange titles that aren't what they used to be.

My current .htaccess file looks like this:

Options +FollowSymlinks

IndexIgnore .htaccess */.??* *~ *# */HEADER* */README* */_vti*

RewriteEngine On
RewriteCond %{HTTP_HOST} ^pokersite.org
RewriteRule (.*) http://www.pokersite.org/$1 [R=301,L]

 redirect 301 /nl/full-tilt-poker/referenzcode/ http://www.pokersite.org/de/fu…..erenzcode/

 redirect 301 /cardspike-poker/promotion-code/ http://www.pokersite.org/cards…..onus-code/

 redirect 301 /sv/ http://www.pokersite.org/se/

 redirect 301 /ultimate-bet/bonus-code/ http://www.pokersite.org/ultim…..rral-code/

 redirect 301 /bodoglife-poker/ http://www.pokersite.org/bodog-poker/

ErrorDocument 404 /missing.php

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress

Any help or suggestions you can provide would be greatly appreciated!