No communication link

Ok I am trying to download program to Robot I keep getting an error saying there is no communication link available to VEX device. I downloaded the Windows 8 Prolific USB-to-Serial Driver thinking that might be the problem since I have windows 8 on my computer but it is still doing the same thing. Please help before I go crazy. I am using a usb to usb cable.

For future reference, we are currently troubleshooting this particular issue on the ROBOTC forum post linked below.