INNO TROUBLESHOOT - Questions Here

[KaktoR]

procedure CurPageChanged(CurPageID: integer);
  begin
  case CurPageID of
    wpInstalling: begin
      WizardForm.ClientHeight := (180);
      WizardForm.ClientWidth := (497);
      WizardForm.CancelButton.SetBounds(ScaleX(75), ScaleY(23), ScaleX(412), ScaleY(327));
...
...

I'm not able to move Cancel button on installing page. Anyone knows why?

Also, BackButton just disappears with this

wpSelectDir: begin
      WizardForm.NextButton.Caption := 'Install';
      WizardForm.BackButton.SetBounds(ScaleX(75), ScaleY(23), ScaleX(242), ScaleY(227));

I have to define these buttons seperatly? I just thought because there are already in "InnoSetup Support" tab.