Let it be self-taught, check out:
http://www.youtube.com/watch?v=ue3bhCZ60Jk&mode=related&search= You should install the latest JDK 1.5 version.
How to test the installation? Try: you must use the command line to do it:
http://www.youtube.com/watch?v=ue3bhCZ60Jk&mode=related&search=