does anyone know if there is a user guide for the notepad++?
What kind of user guide you are looking for?
There are some FAQ's on the Notepad++ home page (http://notepad-plus.sourceforge.net/), ant there is no other user guides (at least i never saw any).
But, seriously, why do you need a user guide? Notepad++ is pretty simple to use without any user guides. All features, that might need some documentation are documented in the FAQs i mentioned. Well, good luck reading them! :)