User-agent: *
Disallow: /cgi-bin/
Disallow: /images/
Disallow: /login
Disallow: /login.php

Disallow: /forum/index.php?action=login
Disallow: /forum/index.php?action=unread
Disallow: /forum/index.php?action=pm
Disallow: /forum/index.php?action=search
Disallow: /forum/index.php?action=search;advanced
Disallow: /forum/index.php?action=activate
Disallow: /forum/index.php?action=register
Disallow: /forum/index.php?action=help