Quattro,
I bought Reflex a couple of weeks ago, and with W2K and a skysport 6A it works fine.
The only problem I had was that my aileron rate was set to a maxumum travel of about 70% at the Tx, and this meant that there wasnt enough travel for reflex to calibrate this function.
I just tweaked the rate up slightly at the Tx and it works fine now.
Hope you get it working because its a great sim...
I tried Aerofly Pro and Reflex at sandown and bought Reflex, basically because it took me three attempts to get of the ground, and I figured the harder it is the more realistic it probably is...