This one covers all the TTI AVS's- CA, CSN, UGAS. Replace "your-domain" and "where ever you send them" and put it in your content (or whatever you call your members/protected) folder:
AuthType Basic
RewriteEngine On
RewriteCond %{HTTP_REFERER} !^
http://www.your-domain.com [NC]
RewriteCond %{HTTP_REFERER} !^
http://your-domain.com [NC]
RewriteCond %{HTTP_REFERER} !^
http://.+\.avsofchoice\.com/* [NC]
RewriteCond %{HTTP_REFERER} !^
http://.+\.cybersexnetwork\.com/* [NC]
RewriteCond %{HTTP_REFERER} !^
http://.+\.cyberage\.com/* [NC]
RewriteCond %{HTTP_REFERER} !^
http://.+\.ugas\.com/* [NC]
RewriteRule /*
http://where-ever-you-send-them.com [R,L]
That doesn't fit without wrapping- let me try again:
AuthType Basic
RewriteEngine On
RewriteCond %{HTTP_REFERER} !^http://www.your-domain.com [NC]
RewriteCond %{HTTP_REFERER} !^http://your-domain.com [NC]
RewriteCond %{HTTP_REFERER} !^http://.+\.avsofchoice\.com/* [NC]
RewriteCond %{HTTP_REFERER} !^http://.+\.cybersexnetwork\.com/* [NC]
RewriteCond %{HTTP_REFERER} !^http://.+\.cyberage\.com/* [NC]
RewriteCond %{HTTP_REFERER} !^http://.+\.ugas\.com/* [NC]
RewriteRule /* http://where-ever-you-send-them.com [R,L]