So, you have three choices:
2) If you do not, go to Netscape
or any of the other nice browser companies and pick up a copy.
Netscape Navigator and Microsoft Internet Explorer are both free, though I believe Netscape is shareware.
My own preference is Netscape, but you are free to choose yourself and this site should be compatible with both.
3) Go to the Los Alamos site, Here, which displays the same plots using a CGI-interface.