I have the zenphoto 1.2.4 [3716] installation since last 1 year and it's been indexed site wide by Google. Recently, I've noticed Google has crawled duplicate content www and non www.

Can I have the Mod rewrite rules for .htaccess file?
I am looking for non www to www version.

Thank you in advance.

You should be able to do that on your server. Ask your host. Otherwise google the net for instructions how to do domain redirection with htaccess.

Thanks Acrylian,
I tried the methods I came across searching through Google, but unfortunately didn't work. I'll try again. Thanks again.

Searched through Google again. This one worked well for me.

Options +FollowSymLinks
RewriteEngine on
RewriteCond %{HTTP_HOST} ^yoursite.com [NC]
RewriteRule ^(.*)$ http://www.yoursite.com/$1 [L,R=301]