Let's take a step back for a moment. I checked the eBay listing you linked, and I can only see pictures of the back of the card
(which says "Agere Systems" instead of "Lucent Technologies" - but that shouldn't matter
). On the other side - is there just the "ORiNOCO" logo with a blue or purple background on the card? And does the black antenna casing have the "ORiNOCO" logo as well, or does it say "Lucent Technologies"? Or does it look completely different from those descriptions?
(The seller's claims notwithstanding, I'm not convinced that this isn't a rebranded card.
)
I seem to recall some devices may have even had issues with the 4.06 driver - but I can't see how a card that works in my HC-4500 wouldn't work in your HC-4100.