[Plugin : NextGen Gallery] sort issue

http://www [dot] artist-annukka-costello [dot] co [dot]uk/pictures-2/watercolour/

On the above page, i can not get the image names below the images to sort in the same order as the images.

if you see the righthand nav, the images are presented in each gallery in alpha order, in the body the images themselves are sorted by filename (filename = imagename)

But i can not get the list below the images in the body to match the order

Anyone got any ideas please