have you tried http://NSLU2:9000/configpage/index.html ? I got this from the PC setup software that installed the 4.4 on my NSLU.
Alternatively, http://NSLU2:9000/config could also help.
Thumbs up for your NSLU,
Ralf
Running Twonky 4.4.3.1 on a NSLU2 from a 4GB USB stick
