urlquery flags IDS alerts - site vulnerable?

See: http://urlquery.net/report.php?id=1412433811635
Nothing flagged: http://quttera.com/detailed_report/www.publicholidaynsw.com.au
Site vulnerable to attacks, ISSUE DETECTED DEFINITION VULNERABLE HEADER
Outdated Joomla Found Security Announcements Joomla under 2.5.26 or 3.3.5

IP badness history: https://www.virustotal.com/nl/ip-address/50.87.154.1/information/

polonus