[Plugin: NextGEN Gallery] adding link under thumbnail

https://www.bbycks.com/shop/gallery.php?osCsid=5u87ifcrjd89udioe8p9le2rj7

dear friend, im a new use, hope you guys may help with my problem.

how to make the gallery like the above link?
placing some icon and links under the thumbnails.

Thanks a lot ??