User-agent: Mediapartners-Google* 
Disallow:

User-agent: Googlebot-Image
Disallow: /

User-agent: psbot
Disallow: /

User-agent: NPBot
Disallow: /

User-agent: Wget
Disallow: /

User-agent: *
Disallow: /cgi-bin/
Disallow: /images/
Disallow: /gallery/
Disallow: /user_guide/