I have a web site www.jonturner.com which is hosted by an external free service, the url is www.jonturner.f2s.com. Originally I asked for a broadcast key for www.jonturner.com which didn't work, then for the f2s one this doesn't work either.
Do I need to specify the pages in which the Viewpoint objects are or is it another problem?

Your embed/object tag had the actual key in the tag e.g.:

BroadcastKeyFileURL="1ca1100f04e85ef5f769c3e3684bb5d03c81c4ce-290501--www.jonturner.f2s.com">

This will not work. You need to point to a file that contains your key.

So, save the attached BroadcastKey.txt file. I would recommend that you either save it in the same location as your html file, or put it somewhere on your web server. Then, in the embed tag you will see two BroadcastKeyFileURL fields. Put one of the following into these fields:

If you saved the file in the same folder as the html, then put the BroadcastKey.txt e.g. BroadcastKeyFileURL="BroadcastKey.txt">

If you saved the file on your web server, then put the complete path to the BroadcastKey.txt file e.g.:

BroadcastKeyFileURL="http://www.jonturner.f2s.com/BroadcastKey.txt">