NIMJ's web site explains:
All articles published in 2007 are eligible. The award will be presented at the Judicial Conference of the U.S. Court of Appeals for the Armed Forces on March 5-6, 2008. Please nominate articles by sending a citation, link (if available), and brief description to Prof. Sean Watts, Creighton University Law School, email@example.com. The award winner will be selected by a distinguished prize committee (Prof. Watts (chair), Prof. Diane Marie Amann, Lt Col Paul Kantwill, and Major Mynda Ohman). The deadline for nominations is Feb 11, 2008.
I'm resisting the urge to make a joke at the expense of an eligible article at which I've already taken a couple of shots. But please feel free to fill in your own punchline here.