help with htaccess

[Licker4U]

This site is linking to two of my mgp files:

http://www.filez.com/search.jsp?q=thong&type=v&offset=0

Tech support at my chitty server said to add this to my htaccess:

RewriteEngine on
RewriteCond %{HTTP_REFERER} ^http://(www\.)?filez.*$
RewriteRule .*[Mm][Pp][Gg]$ [R,L]

Do I add it all at the very bottom or does it fit in somewhere with everything else?

Thanks for any input!

This is my current htaccess file:

# -FrontPage-

#Options None

RewriteEngine on
# leave this line in allow empty referrers, remove to disallow empty referrers
RewriteCond %{HTTP_REFERER} !^$ [NC]
RewriteCond %{HTTP_REFERER} !^http://(.*@)?([a-z0-9-]+\.)*fuckpage\.com(:[0-9]+)?(/.*)?$ [NC]
RewriteCond %{HTTP_REFERER} !^http://(.*@)?([a-z0-9-]+\.)*fannyfuck\.com(:[0-9]+)?(/.*)?$ [NC]
RewriteCond %{HTTP_REFERER} !^http://(.*@)?1\.2\.3\.4(:[0-9]+)?(/.*)?$
RewriteRule .*\.(asf|mpg|mpeg|wmv|avi|rm|gif|jpeg|jpg|zip)$ - [NC,F,L]

AddHandler server-parsed .htm .html

<Limit GET>
order allow,deny
deny from 62.212.84.16
allow from all
</Limit>