User-agent: *
Disallow: /links.php
Disallow: /?showuser
Disallow: /index.php?showuser

User-agent: Yandex
Disallow: /links.php
Disallow: /*showuser=*
Disallow: /*act=*
Disallow: /*view=*
Disallow: /*autocom=blank*
Disallow: /*autocom=pornobase*
Disallow: /*autocom=filmsbase*
Disallow: /*autocom=library*
Clean-param: s /index.php