HI Ron,
Open the System Profiler to see all the software/hardware on the iBook. (Applications/Utilities).
If Bluetooth was not pre-installed then you need a Bluetooth adapter. I use a D-Link USB adapter.
This is the exact one I have;
http://www.dlink.com/products/?pid=34 and it works like a charm. In fact, this one has lasted 5 years without need of replacement. I use pair it with a mouse and external keyboard both.
As Lyssa said, search the internet to see if there another manufacture available to compare the features with and make certain it's Mac compatible.
But... 2 thumbs up here for the D-Link !!
Carolyn 🙂