what client are you using when you access to root folder ? if it is filezilla you will see at the top Server click on this and make sure checked show hidden files..
Simply put following code into your .htaccess file where located your root
it will redirect www version from without www
RewriteCond %{HTTP_HOST} ^sbtdesign\.co.uk$ [NC]
RewriteRule ^(.*)$ http://www.sbtdesign.co.uk/$1 [L,R=301]
you want to use the website without ‘www’ ? or you want to both ?
I don’t recommend that you use both it may will be duplicate content issue
