NEC Setup remotes are tough to clone to universal remotes, IIRC, because the setup remote has a 'shift' key that is extensively used during the setup procedure.
I have a setup remote you can borrow until you can source one. Curts' site has PC control software and a cable pinout.
Heck, I may even still have my NEC cable for the software if you want to run it on a laptop or convenient desktop: http://www.curtpalme.com/NECPG_PCControl.shtm
I enjoy mowing my lawn. It's the only two hours of my week where I know what's expected, understand the job, can forsee completion, and look back and see progress.