I note that you are the same person who asked where have all the jobs gone then.
I do think that reading these two posts from yourself that you are a very angry and frustrated person. This you may well need to work on as unbeknown to yourself it may come through in an inteview.
I can understand your frustration however, you must learn how to deal with it.
Being called for an interview means that you do have the qualities that a company is looking for, you must now learn how to present them in person.
Best of luck