It looks like the free sub domain that the host has provided has been cancelled... This is usually done if the account is being terminated or if the customer has lapsed on payment for some reason.
If this is the case, the I.P above may be recycled at some point and the files could be deleted. I would use a site ripper program with the IP address as the URL to take a copy of the whole site if it's valuable to you. Just in case.
Many thanks for the advice.
I've accessed it through Google as suggested, and it works fine.
Interesting, that if I access the site through the IP address as http://126.96.36.199/index2.html, it works, but if I use the audio.westhost.com address, it gives the 404 error.
VTA is one of the things I'm going to look at when I next visit my man-cave next week. You may be able to help me as the instructions refer to that VTA wheel but then another "For OL arms with integral VTA adjuster (Encounter and above) you should raise the arm height to approximately the right level using the threaded VTA adjuster and then use the arm VTA wheel for fine adjustment". The first is what we've just been talking about, I believe, but I have no idea what the second is and there is no diagram to help. Can you advise? Ta.