Okay, I've dived into this a little bit, and it seems like something snafu-y going on between their web designers/hosters and the dns servers. some error seems to have been propagated into one flavor of dns server but not others. I've seen similar things happen before. It should actually work itself out within the week. What threw me was that the .co.uk address still gave me their intro page that points to the .com site. But having looked at the WHOIS info, that's because one site is registered directly through BT, while the main .com site is registered through their web designers. While the designers' site is working for me, I can't ping their nameserver, which means that the error is transient and likely to be corrected whenever my ISP gets off their butts and renews their DNS info (which, if they were responsible would happen daily). Or I could be blowing smoke up everyone's kilts and there's actually a problem that their hosting company needs to fix- but given that some of us can get onto the site and not others, I'd say it's much more likely that it's an error in local ISP's DNS servers.