The Xbee PRO is the XBP24-AUI-001 ( S1 )
Current firmware version would be 10ED
Some have S1 some don't but they all work with my equipment.
I am now trying to use the surface mount type
Not sure what the firmware version is as I have no means to connect it up to a computer unless I purchase a development board.
By connecting the vcc, gnd and associate, the led should flash as the other does when connecting new xbees to my product. These should be a direct drop in apart from different pin out, still no reply from digi. I may have to redesign the pcb to go back to the through hole device, pitty I was hoping to use the SMD type, cheers.