http://toolbar.netcraft.com/site_report?url=http://elementsystems.net
It has the wrong "Organisation", "Nameserver Organisation" and "Reverse DNS"
My domain information is private and from what I can see, everything on my server is setup correctly. Any ideas?
That is setup in the registries whois records, contact your registry (godaddy) for them to update it.
From what I remember, Netcraft will remove the information from their website if you contact them ([email protected]) but they will not amend it for you. As mentioned in the other answer @topdog, this information is already available elsewhere in the public domain so contacting Netcraft to remove it is as useful as chasing a goose.