User-agent: *
Disallow: /administrator/
Disallow: /cache/
Disallow: /components/
Disallow: /images/
Disallow: /includes/
Disallow: /installation/
Disallow: /language/
Disallow: /libraries/
Disallow: /media/
Disallow: /modules/
Disallow: /plugins/
Disallow: /popup/
Disallow: /popups/
Disallow: /templates/
Disallow: /tmp/
Disallow: /xmlrpc/
Allow: /images/pdf/
Allow: /images/pdfs/
Sitemap: http://www.rcn.com/index.php?option=com_xmap&sitemap=1&view=xml 

User-agent: Slurp 
Crawl-delay: 2

User-agent: msnbot 
Crawl-delay: 2