Lots of info on the net for this flight NO REG though - Sorry
You could try
www.openatc.com but you may have to wait until its maybe just an hour away tomorrow. Personally i have always struggled with this site, as flight numbers can be a bit hit and miss. Registartions are shown on this site.
The flight can be "live" tracked at
http://flightaware.com/live/flight/NWA44 loads of info, excluding the reg
Cheers
Jamie