Remove border from thumbnails

URL: http://www.wellbeingbydesign.com/main/?cat=4

I’d like to remove the white border from the thumbnails, I’ve done a search around the forum / threads and found you have to edit nextgen-gallery/css/nggallery.css but there is no such file on that path.

Has it changed since the last update?

There is also a link on the last thumbnail to the left, the one linking to #section7 which isn’t loading the gallery, how can I get that to work?

Thanks

http://wordpress.org/plugins/nextgen-gallery/