User-agent:* 
Disallow: credits.html
Disallow: /admin/
Disallow: /blocks/
Disallow: /cache/
Disallow: /images/
Disallow: /includes/
Disallow: /language/
Disallow: /modules/
Disallow: /themes/
Disallow: /directory.php
Disallow: /directory/

User-agent: Mozilla/5.0 (Twiceler-0.9 http://www.cuill.com/twiceler/robot.html)
Disallow:/