Hi Brian,
The reason I was not getting interrupts on devices in the pci slot on the EPIA is because they were not set to be bus masters, so they would never generate interrupts. A quick write to the command register fixed the problem. Command register is being set to 0x02. It should be set to 0x06. a 6 to 4.
Thanks for the catch. IIRC, I did have extra ethernet card working before.
-Andrew