# snipped creation of form object
    if ($form->submitted && $form->validate) {
        # Get form fields as hashref
        my $field = $form->fields;

        # Do something to update your data (you would write this)
        do_data_update($field->{lname}, $field->{fname},
                       $field->{email}, $field->{phone},
                       $field->{gender});

        # Show confirmation screen
        print $form->confirm(header => 1);
    } 
    else {
        # Print out the form

        print $form->render(header => 1);       
    }