I installed the gallery module. The lightbox works but has no buttons to navigate and is not centered. I think there are links missing but I dont know where...

URL:
http://www.pixelhorse.net/silverstripe/apetithaeppchen-2/

In the Page.ss I added:

      <% require javascript(gallery2/javascript/prototype.js) %>
      <% require javascript(gallery2/javascript/effects.js) %>
      <% require javascript(gallery2/javascript/lightwindow.js) %>

before even the lightbox wasn't shown...

any idea?

I would like to have the prev/next bottons showing by default rather than fading in on mouse over. Have looked throught lightbox.js, css files and read this forum but cant get it working. Can anyone advise how to achieve this, thanks.