Winamp & Shoutcast Forums - LangDLL dialog

Hello,
I got the following problem with my nsis script.
My installer displays language selection box. I am setting for this dialog its title and info, like below:

PHP Code:


		
			
   !define MUI_LANGDLL_WINDOWTITLE $(LANGUAGE_DLL_TITLE)

   !define MUI_LANGDLL_INFO $(LANGUAGE_DLL_INFO)



where:

LangString LANGUAGE_DLL_TITLE ${LANG_POLISH} "Installer Language"

LangString LANGUAGE_DLL_INFO ${LANG_POLISH} "Please, choose a language:"



In .onInit function:

   !insertmacro MUI_LANGDLL_DISPLAY

The installer has also deinstaller. I want to display this dialog for deinstaller too.
I want to change title for language dialog. Is it possible? How could I do it?

I am displaying language selection dialog as below:

PHP Code:


		
			
Function un.onInit



  !insertmacro MUI_UNGETLANGUAGE



FunctionEnd

And now... how to change its title? It is still display "Installer Language" - but it must me Deinstaller Language.

The second issue with language selection box is "Cancel" button. How can I change this in other languages? Now it is always Cancel, no matter what language user choosed.
Thanks for help,
-Pawel