Whether via ftp, editor or a plugin use this language for your Robots.txt file:
User-agent: duggmirror
Disallow: /
User-agent: Googlebot
Disallow: /*?*
Disallow: /*.cgi$
allow: /*.css$
allow: /*.js$
Disallow: /*.inc$
Disallow: /*.php$
Disallow: /*.php*
Disallow: /*.xhtml$
Disallow: /trackback*
Disallow: /z/
User-agent: *
Disallow: /c/
Disallow: /date/
Disallow: /f/
Disallow: /httpd/
Disallow: /i/
Disallow: /j/
Disallow: /stats/
Disallow: /t/
Disallow: /tag/
Disallow: /trackback
Disallow: /user/
Disallow: /user/register
Disallow: /wp-admin/
Disallow: /wp-content/backup-db/
Disallow: /wp-content/plugins/
Disallow: /wp-content/themes/
Disallow: /wp-includes/
Disallow: /wp-login.php
Disallow: /wp-login.php?action=register
Sitemap: http://YOURDOMAIN.COM/sitemap.xml
# BEGIN XML-SITEMAP-PLUGIN
Sitemap: http://YOURDOMAIN.COM/sitemap.xml.gz
# END XML-SITEMAP-PLUGIN