Well my Safari browser gets there with no problem. So you might have a Safari haxie installed that is preventing you to see the page or your ISP's DNS server is having trouble.
Some ISPs have this notion that they are helping their users by blocking certain sites. So you get past this you can use OpenDNS.com. The web site will explain this on their web page.
If you have the problem even after that then follow these steps.
1) Open /Applications/Utilities/Disk Utility and "Repair Permissions".
2) In Safari clear out you history and cache.
Please report back if neither of these suggestions work. Good Luck.
