Try this setup, it works 4 me.
As an example:
/root/
tgp/
separate alpha numeric folder for each gallery page submitted under ../tgp/
call the pics for each page from /root/tgp/pics/
call the recips for each page from /root/tgp/recips/
load one set of pics here /root/tgp/pics/
place this .htaccess file in /root/tgp/pics/
RewriteEngine on
RewriteCond %{HTTP_REFERER} !^http://mofosex.com.com/.*$ [NC]
RewriteCond %{HTTP_REFERER} !^http://www.mofosex.com.com/.*$ [NC]
RewriteCond %{REQUEST_URI} !kimber.jpg
RewriteRule .*[Jj][Pp][Gg]$|.*[Gg][Ii][Ff]$|.*[Jj][Pp][Ee][Gg]$|.*[Bb][Mm][Pp]$|.*[Pp][Nn][Gg]$
http://italy.indymedia.org/uploads/2005/03/kimber.jpg [R,L]