Which version of Noise Ninja do you have?
Did you try running the noise ninja installer and pointing it to the photoshop elements 11 plugins folder?
Thanks. Its working now.
2012/11/27 R_Kelly <firstname.lastname@example.org>
Re: I updated PE8 to PE11. How can put my old noise ninja to PE11? created by
R_Kelly <http://forums.adobe.com/people/R_Kelly> in Photoshop Elements- View
the full discussion <http://forums.adobe.com/message/4876098#4876098