#if wxUSE_NOTEBOOK
 
+#include  "wx/notebook.h"
+
 // wxWidgets
 #ifndef WX_PRECOMP
-  #include "wx/app.h"
-  #include "wx/dcclient.h"
-  #include "wx/string.h"
-  #include "wx/settings.h"
+    #include "wx/app.h"
+    #include "wx/dcclient.h"
+    #include "wx/string.h"
+    #include "wx/settings.h"
+    #include "wx/log.h"
+    #include "wx/event.h"
+    #include  "wx/control.h"
 #endif  // WX_PRECOMP
 
-#include  "wx/log.h"
 #include  "wx/imaglist.h"
-#include  "wx/event.h"
-#include  "wx/control.h"
-#include  "wx/notebook.h"
 
 #include  "wx/os2/private.h"
 
                          long            lStyle,
                          const wxString& rsName )
 {
+    if ( (lStyle & wxBK_ALIGN_MASK) == wxBK_DEFAULT )
+        lStyle |= wxBK_TOP;
     //
     // Base init
     //
     return (bool)::WinSendMsg( GetHWND()
                               ,BKM_SETTABBITMAP
                               ,MPFROMLONG((ULONG)m_alPageId[nPage])
-                              ,(MPARAM)vBitmap.GetHBITMAP()
+                              ,(MPARAM)wxFlipBmp(vBitmap.GetHBITMAP())
                              );
 } // end of wxNotebook::SetPageImage