Truth be told, I have never used that particular application, and being as how it has not been maintained for over 4 years, I doubt too many people will be able to help you. The obvious question would be whether or not you have the Java SDK installed, and, any chance that you might consider something a bit newer, like Eclipse or NetBeans? At least they have active support.
You have to keep in mind that we are not mind readers. When you make a statement like the one you made in your first post, there is no possible way anybody can answer your question. We have many talented people here willing to help, but unless you ask good questions, we can't do that.