I'm looking for a menu and sortable list (with embedded images) that looks like this:

Hi all,

I know I’ve seen (free) scripts that do this, but I can’t find them….

(Please see the mock up (link below) for reference.)

On the left, under the “Table of contents” there is a drop down menu.
Nice clean lines, simple. The choices will show a line under it.
“contributing artist” will give the option to sort a-z or z-a

The solution has to be compatible with the list below; it should be able to sort the entries and their thumbnails.

This is on a linux server.

And of course we would love it if it was SEO friendly!