The serial port shows up correctly but no radio is found.
I have an Xbee Module Series 1 mounted on an Adafruit Xbee Adapter kit and connecting using FTDI Friend attached to Mini Arduino Pro.
That is not going to work. XCTU needs direct access to the radios DI and DO lines as well as DTR and RTS in order to detect and communicate with it. Try using an XBIB-U-DEV board to connect it to the PC with.