404. That’s an error.
The requested URL /bookmarks/mark?op=edit&bkmk=http://www.twiki.org/cgi-bin/view/Main/KatyBradford&title=Katy%20Bradford&annotation=Katy%20Bradford%20in%20Main%20web%20on%20www.twiki.org
was not found on this server. That’s all we know.