User-Agent: Googlebot
Disallow: /*.gif$
Disallow: /*.jpg$
Disallow: /*?
Disallow: /f

User-Agent: Googlebot-Image
Disallow: /

User-agent: psbot
Disallow: /

User-agent: msnbot
Disallow: /*.gif$
Disallow: /*.jpg$
Disallow: /*?
Disallow: /f

User-Agent: *
Disallow: /