For Rev 3 and Rev 5 boards, the 2.04 ROM IC must have pin 1 jumpered to pin 31. This connects A17 (pin 1 on the ROM chip) to A17 (pin 31 from PCB). For Rev 6A and above, cut or remove any jumpers from the top of the chip.
As for the resistor strapped on the ODD CIA at pin 5: Although I don't have a reason, it appeared on Rev5 type 3, and all Rev 6 boards. Anyone have that one?
