> i used my simblaster cable when I tried the demo, it worked fine.
That's a load of crap!
XTR uses its interface as a copy protection device, it can NOT be controlled by any 3rd-party interface or joystick.

Don't waste your money buying any interfaces if you intent to use them with Reflex, better buy the simulator itself--you won't regret it. I bought XTR about a month ago and I find its flight model, especially while hovering, to be the most realistic of all the sims I've tried (and I tried them all except for G3).