Vertical thumbnail question

Love this plug in but am having one issue. I followed this to change the orientation of the thumbnails:
http://www.electricprism.com/aeron/slideshow/example5.html
Problem is even with no other customization, the thumbs insist on scrolling horizontally in groups, when they advance.
The page I’m playing on is here:
http://michathome.elementfx.com/sample-page/

http://ww.wp.xz.cn/extend/plugins/blip-slideshow/