I'm blocked too. I went in through a proxy, and there's a thread on this. Menty says:
I tracked down the problem to doubled IP addresses assigned to the domain name that I use as our nameserver. I fixed this and I am pretty confident that this will fix everything including Picturehoster problems and perhaps even jack's woe's in getting on the board.
Unfortunately we will have to wait. Propagation of the revised settings can take up 48 hours. It usually doesn't take that long but it will be different for everyone depending on when their ISP flush their DNS cache.
So yeah.. I think we're fixed up here. Nothing to do but wait for everyone to come back when the site propagates for them.