Not sure on that one Brett, I specified what the guider was when I ordered the cable, works fine.
Rob, I am ATM, using the supplied RS232 cable and have it connected to a Serial to USB connected to my Laptop, to get the extra length I needed I simply used a 5 meter powered USB cable. GOTO is accomplished using ASCOM and the CCDAstro Temma driver:
http://ccdastro.net/temma.html
GOTO will operate with any program using the ASCOM plugin.
Cheers