Hello, im a novice into developing an application using backend as Python (2.5) and Qt(3) as front end GUI designer. I have 5 diffrent dialogs to implement the scripts. i just know to load the window (main window)

 from qt import *
    from dialogselectkernelfile import *
    from formcopyextract import *
    import sys
    if __name__ == "__main__":

        app = QApplication(sys.argv)
        f = DialogSelectKernelFile()

        f.show()
        app.setMainWidget(f)
        app.exec_loop()  

main dialog opens on running. i have a set of back,Next,Cancel buttons pusing on each should open the next or previous dialogs. i use the pyuic compiler to source translation.how can i do this from python. please reply i`m running out of time.i dont know how to load another dialog from a signal of push button in another dialog. Help me pls Thanks a Lot