Mines ...

Code: 
User-agent: *
Disallow: /forum/admincp/
Disallow: /forum/announcement.php
Disallow: /forum/calendar.php
Disallow: /forum/cron.php
Disallow: /forum/editpost.php
Disallow: /forum/faq.php
Disallow: /forum/joinrequests.php
Disallow: /forum/login.php
Disallow: /forum/member.php
Disallow: /forum/misc.php
Disallow: /forum/modcp/
Disallow: /forum/moderator.php
Disallow: /forum/newreply.php
Disallow: /forum/newthread.php
Disallow: /forum/online.php
Disallow: /forum/printthread.php
Disallow: /forum/private.php
Disallow: /forum/profile.php
Disallow: /forum/register.php
Disallow: /forum/search.php
Disallow: /forum/sendmessage.php
Disallow: /forum/showgroups.php
Disallow: /forum/showpost.php
Disallow: /forum/subscription.php
Disallow: /forum/subscriptions.php
Disallow: /forum/threadrate.php
Disallow: /forum/usercp.php
Not shure if its right though =/