[iBook] iBook wireless adapter

[kachinapat at cox.net]

I need some advice about wireless.  My sister-in-law has an iBook 500MHz duel 
USB, WITHOUT an airport card.  She wants to setup a wireless network in her 
house an use her iBook wirelessly (is that a real word?).has anyone had luck 
using external wireless adapters on their macs? Any advice would be helpful.

I have looked at the compatibility list and found that the adapters that might 
work are no longer being sold.

Pat