Joomla fix: site not working with www.domain.com

I've been trying to figure this out for myself for 2 days, and can't do it. My website is [login to view URL] . It is hosted on GoDaddy. When I go to [login to view URL], I get "address unknown" errors. When I type [login to view URL] or [login to view URL] I can access the site normally. I've tried altering the .htaccess file with no luck by editing it to the following: ########## Begin - Custom redirects # # If you need to redirect some pages, or set a canonical non-www to # www redirect (or vice versa), place that code here. Ensure those # redirects use the correct RewriteRule syntax and the [R=301,L] flags. # RewriteCond %{HTTP_HOST} ^www\.spa-riviera\.com [NC] RewriteRule (.*) [login to view URL]$1 [R=301,L,NC] ########## End - Custom redirects I've enabled and disabled mod_rewrite with no change. I've changed [login to view URL] to .htaccess with no change. My Joomla! version is 1.5.23 Stable OS/Hosting Type: Windows / 4GH Web Hosting .Net Runtime Version: ASP.Net 4.0 PHP Version: PHP 5.2 IIS Version: IIS 7.0 I need someone to get this fixed for me asap. Please give me a bid and a time estimate. Thank you!