Can't Access Single Web Site

Last night I had problems visiting one single website, http://www.tealandblack.net . I know I am the only one having this problem and I can access any other sites just fine. I had been doing several CTRL+Refreshes while browsing that site as new graphics were being uploaded.

No other computers on my network can access the site.

I tried another wireless connection and I still can not access the site.

I have tried it on a computer running XP, Vista (using right now) and on my Mac.

I have run CCleaner.

I have flushed DNS.

I have set router to dynamically detect ISP and DNS servers instead of using my static IP set-up.

Incredibly frustrating as I am on staff there.

I'd be eternally grateful for a solution this problem.