Error on Page

I installed Java on my computer, I was getting the memory could not be read message but I fixed that. However, Java still does not work. It is selected in IE Options, but for some reason whenever I try to click on a button for a Java applet it still gives me an error on the page.
[298 byte] By [jdbluea] at [2007-9-28 14:45:16]
# 1
i.e. yahoo games applets
jdbluea at 2007-7-12 11:20:17 > top of Java-index,Developer Tools,Debugging and Profiling Tool APIs...