Installing problem – it does not work!

I have installed, but cant get it working at all – maybe something I did wrong – maybe some tips from you could help?

The website:
http://glassy.dk/website-2013/wordpress/

I want the 4 child-pages (Musik, Historie, Store, Tavler) under Parent-page (Galleri) – to be lined up right under the Parent-page when clicking it!

Thanks in advance

http://wordpress.org/plugins/jquery-vertical-accordion-menu/