Hi Kry, nice to meet you.
My NSLU2 was doing weird things, it took me months to realize that the culprit was a faulty RAM chip.
I bought a new NSLU2 (will they lower its price some day?) and now amuled works like a charm.
I thought the remote-gui thing was a bug cause sometimes a true UserID is shown (or a number that looks like an UserID).
Anyway, it's not an important one.
Thanks again
Ramiro