Thanks, I will check it out when I get home later but the error I receive when trying to access the site that is contained in my HOSTS file is:

The requested URL could not be retrieved..

Unable to determine IP address from host name... the cache was not able to resolve the hostname presented in the url...

Generated by PSBTTEST (squid/2.6.STABLE6.2.7-6)

I know this site/url still works as it did before as I have tried the same on a friends PC who is also a BT customer and he accesses it fine. I can also FTP to fine.

Cheers
Dave