[Plugin: NextGEN Gallery] even distribute thumbnails in container

hi there,

i am using NextGEN gallery and i would like the thumbnails to be evenly spaced from left to right within the div in which they are contained (i also want to make sure that the thumbnails on the far right and the far left butt-up to the edge of the container).

here are two pages that show the ways the gallery is being used on the site i am working on (you’ll need this password: “christo” to see the pages):

http://kakadunativeplants.com.au/recent-projects
(on this page i want 4 images across with equal space to the left of the image on the far left and to the right of the image on the far right. i also want the images in between to be evenly distributed)

http://kakadunativeplants.com.au/fire-management
(on this page you can see that the space to the left of the gallery image on the far left is different from the space to the right of the gallery image on the far right)

please help! is there a simple css solution to this problem?