Error:

If you have a warning at the top of your browser window saying "To help protect your security...etc" then simply click the bar and follow the instructions to allow active content to be displayed. This will allow you to see the QTVR panorama.

Alternatively, if you're seeing this then you might not have the necessary Quicktime player to view the 360° panorama.
The Quicktime player can be downloaded quickly " free of charge from the Apple site:
http://www.apple.com/quicktime/download/win.html
IMPORTANT: unless you want to download iTunes as well, select the second option, "QuickTime 7.1.5 for Windows 2000/XP" which is simply the player and nothing else.