[dxlwebs]

add this into your .htacces file in your forums root

RewriteEngine on
RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !^http(s)?://(www\.)?yoursite.com [NC]
RewriteCond %{HTTP_REFERER} !^http(s)?://(www\.)?domain2.com [NC]
RewriteRule .*\.(jpg|png|bmp|gif)$ http://yourdomain.com/forum/nhl.png [NC,R,L]

edit the links to your specified needs remember to put the correct links in and you must have your site url where i put yoursite.com to make sure that your sites images still show!