User-agent: Mediapartners-Google*
User-agent: *
Allow: /index.php
Allow: /sitemap.xml
Allow: /backend.php
Allow: /forums.html

Disallow:

User-agent: *
Disallow: /admin.php
Disallow: /admin/
Disallow: /db/
Disallow: /images/
Disallow: /includes/
Disallow: /install/
Disallow: /themes/
Disallow: /smary.php
Disallow: /language/