Ah, I have the same problem cant find the drivers for the Pcut it complains about the "usb-serial" driver when I try to run it on my laptop. I just get the blue screen of death and restart.
Anyone know what driver is needed and where to get it.
EDIT: chased a reference to a file in manual and some distant memory so this link worked for me. I used v2.04.06, the newest one and my laptop worked fine one I gave it the correct Com port.
Hope this helps anyone with the FTDI USB to Serial port in their machine.
FTDIChip drivers
http://www.ftdichip.com/Drivers/VCP.htm