Guitar Hero Files

ok heres my problem,
this guy says open these files and run them (he wont tell me how)
they are .java and .class files and my jre program wont do jack shit?
any help..

here are the files

xxx.shadowzerosoftware.ath.cx/
programming/
gh/gh-utils-latest.zip

ok, its a java applet, just like games... not like swf games. you need to use them on like a website. an example would be like "Udder Insanity" (google it if you want)