[KaktoR]

Change resolution for image in

WizardForm.WizardBitmapImage.Width := 497;
  WizardForm.WizardBitmapImage.Height := 314;

WizardForm.WizardBitmapImage2.Width := 497;
  WizardForm.WizardBitmapImage2.Height := 314;

and buttons for example

MusicButton := TNewButton.Create(WizardForm);
      with MusicButton do begin
        Parent  := WizardForm;
        Left    := ScaleX(169);
        Top     := ScaleY(327);
        Width   := ScaleX(75);
        Height  := ScaleY(23);
        Caption := ExpandConstant('{cm:MusicButtonCaptionSoundOff}');
        OnClick := @MusicButtonClick;
      end;