You will need to view hidden folders for this.
To do this click 'tools' on your main bar in any folder. Go to 'folder options' and click 'view' and check the box 'view hidden files and folders'.
Browse to C:\Documents and settings\anthony\application data\
and make sure 'Sun' is not a folder there. Delete if present.
C:\Program Files\Java will need to be delete aswell.
If you which to reinstall you can download it here..
http://www.java.com/en/download/manual.jsp