Terrey
I can see that site's Java content OK - using XP Home and Both IE6 and Avant Browser and Free version of Zone Alarm on!
I suggest you go to Sun's Java test page..
http://www.java.com/en/download/help/testvm.jsp
If no joy - try downloading the latest version for your system.
Best Of luck..
By the way did the crossword for 31st March OK!