Hey I have an .htaccess file with the following code:

<Files ~ "item|profile|category|search">
ForceType application/x-httpd-php
</Files>

What I want is to add a re-write rule as well which changes any body who navigates to the site to use http://www.domain.com sintead of http://domain.com

I have the code:

RewriteEngine On 
RewriteCond %{SERVER_PORT} 80 
RewriteRule ^(.*)$ http://www.DOMAIN.com/$1 [R,L]

however I can't seem to just place in the file as it corrupts? Or just doesn't work... I wish I knew more about .htaccess files

How can I add this in?

Thanks,

Stefan