I'm in Canada
, where I shouldn't be affected either, and I can't get on.
I've heard some people say it is because the update is trying to upload from the .com site which is blocked. Some have suggested going to the UK site for FTP and have said it worked, but I was "REALLY" leery of doing that since the site to me appeared to be an out of date mirror, that someone might be trying to use to install malicious software on your PC.
Considering you're in the UK, i'm a little surprised that the UK site isn't your default site..which makes me think that site is bogus.