It loads fine here, but I understand your pain, different proxies can be a real pain in the a..
Unfortunately NTL don't want to know about the proxies, I've been talking with some exec office staff recently about my Poplar proxy problems - easy to see and replicate - just try steampowered.com on Poplar at the moment for just one example, or the steady stream of posts in this forum alone about them not working properly - but they won't budge. They don't seem to care that the bad actions of some NTL members (why Valve have blacklisted the Proxies I imagine) affect thousands of people - very bad service indeed.
I would much rather they forget the 10mb speed increases(us on Poplar won't see them after 7pm anyhow) and spend the money on fixing/removing the proxies.
My only advice is to move ISP if you can/are willing - I would, but at this time in my life it would be more hassle than its worth - sadly that seems to be what they are banking on.
Perhaps we should all start witholding a percentage of our monthly fee, for those sites that don't work on NTL but do elsewhere - maybe that would make them notice