Hi Beth, welcome to A2K.
Did you know there is an upgrade for the IE browser? They're running 6.0 now. A visit to the Windows Update site will fix you right up and resolve most of the javascript problems.
If you choose not to do that, then there are a few things you need to check to enable version 5.0 to view the applets.
Step #1 .. Launch Microsoft Internet Explorer.
Step#2 .. Look up at the top toolbar, click on 'view', then click on 'internet options'. When the new window pops up, click on the 'advanced' tab. Scroll down in the new window until you see "Java VM" (or Microsoft VM), CHECK all boxes in that category!! After you have checked all the boxes, you will have to re-start your computer. When it is up and going, you should have the ability to view any and all java applets on the Web!!
Click on this page to see if you can now view the Lake effect java applets.
http://anniereb.com/rebel.html
If so, problem solved. If not, then there are more tweaks you need to do. This list on Annie's page has links to the sources you'll need.
http://anniereb.com/tips/tips4.html
Upgrading your browser to version 6.0 will take care of most of that for you. It is packaged with most of those utilities. Windows Update is here
http://v4.windowsupdate.microsoft.com/en/default.asp