Yeah, I got a reply too:
---------------------------------
Dear Mr Bungle,
Thank you for your email. We have fixed this issue.
The problem happened when the user did not logout. When other user
browsed to our site, ISP or IE return the page in its
cache.
Thank you again, we really appreciate your information.
Kind regards,
Webmaster
Livingstone International Pty. Ltd.
---------------------------------
I tried the site, and it is fixed.