With this script, you can reorganise the order of images by dragging and dropping them(as in a standard file manager). When you're finished, you can save the changes by a standard form submission or perhaps more elegant: by use of Ajax(Asyncron Javascript and XML).
Image number 1
Image number 2
Image number 3
Image number 4
Image number 5
Image number 6
Image number 7
Image number 8
Image number 9
Image number 10
Image number 11
Image number 12
Image number 13
Image number 14
Image number 15