I downloaded and installed Apple's IpoverfirewireB2.

I installed the software on an iMac and an iBook. The iMac worked as
advertised, I went to the network preference and the new port showed
up. however the iBook never showed me the new port. I know the port
works because if I restart the iBook holding down T the drive shows up
on the iMac.

What could be going on? Could there be something conflicting?

Any advice would be greatly appreciated.