Note: In order to see and interact with the java applets you need a java-enabled browser. For example, Netscape 4.0 or higher should work.. In order to see and interact with the mathematica notebooks you need to have either a copy of Mathematica or a copy of MathReader on your machine. MathReader is free and can be downloaded from the Mathematica web download site.
If you need help installing MathReader on your own machine, ask your favorite "computer type" person for help or ask Dr. Woodard .
Note that you can configure your browser to launch either MathReader or Mathematica (whichever you have) upon downloading a *.nb file. How this is done differs from one browser to another. Again, get a friendly computer geek to help.