Matt Clement's Interface - Can't get it to work...

[ThermalQuest]

I just got one of Matt's interfaces for windows XP. I have followed his instructions to the letter to no avail. I plugged the cable into the serial port of my computer and the trainer plug of my TX. When I go to calibrate the TX, it is as if nothing is plugged in. I have tried everything I can think of and am at my wit's end!! The TX I am using is a 6 channel futaba conquest fm (have also tried the 4 channel, same results). ANY help would be GREATLY appreciated!!!

Thanks in advance

Travis