<Files .htaccess>
order allow,deny
deny from all
</Files>
#
Rewriteengine on
RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !^http://yoursite.co.uk/.*$ [NC]
RewriteCond %{HTTP_REFERER} !^http://www.yoursite.co.uk/.*$ [NC]
RewriteCond %{HTTP_REFERER} !^http://127.0.0.1/.*$ [NC]
RewriteCond %{HTTP_REFERER} !^http://www.allowed-site.co.uk/.*$ [NC]
RewriteRule \.(gif|jpg|mp3)$ - [F]