# Replace www.domain.com with your site domain
# Comment this line if you get '500 Server Error'
Options +FollowSymlinks
RewriteEngine on
# yoursitedomain.com -> www.domain.com
RewriteCond %{HTTP_HOST} ^domain.com [NC]
RewriteCond %{REQUEST_URI} !^/forums
RewriteRule ^(.*)$ http://www.domain.com/$1 [R=301,L]

# index.php to /
RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /index\.php\ HTTP/
RewriteCond %{THE_REQUEST} !^POST
RewriteRule ^index\.php$ http://www.domain.com/ [R=301,L]

RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !^http://domain\.com/[./]*$ [NC]
RewriteCond %{HTTP_REFERER} !^http://domain\.com [NC]
RewriteCond %{HTTP_REFERER} !^http://www\.domain\.com/[./]*$ [NC]
RewriteCond %{HTTP_REFERER} !^http://www\.domain\.com [NC]
RewriteRule .*\.(jpg|jpeg|gif|png|bmp)$ - [F,NC]