Forum problem with google &goto=newpost

[محروم.كوم]

Hello


when i add new topic google take 2 url for the topic

the orginal

vb/showthread.php?t=2363


and

vb/showthread.php?t=2363&goto=newpost


How do I stop Google from archiving the second url


my robots.txt


Code:
User-agent: *

Disallow: /cgi-bin/

Disallow: /vb/announcement.php

Disallow: /vb/ajax.php

Disallow: /vb/archive/

Disallow: /vb/calendar.php

Disallow: /vb/cron.php

Disallow: /vb/editpost.php

Disallow: /vb/global.php

Disallow: /vb/image.php

Disallow: /vb/inlinemod.php

Disallow: /vb/joinrequests.php

Disallow: /vb/login.php

Disallow: /vb/member.php

Disallow: /vb/memberlist.php


Disallow: /vb/misc.php

Disallow: /vb/moderator.php

Disallow: /vb/newattachment.php

Disallow: /vb/newreply.php

Disallow: /vb/newthread.php

Disallow: /vb/online.php

Disallow: /vb/postings.php

Disallow: /vb/printthread.php

Disallow: /vb/private.php

Disallow: /vb/profile.php

Disallow: /vb/register.php

Disallow: /vb/report.php

Disallow: /vb/reputation.php

Disallow: /vb/search.php

Disallow: /vb/sendmessage.php

Disallow: /vb/showpost.php

Disallow: /vb/showgroups.php

Disallow: /vb/subscription.php

Disallow: /vb/threadrate.php

Disallow: /vb/usercp.php

Disallow: /vb/usernote.php __DEFINE_LIKE_SHARE__