That did nothing for me but make my TX invisible.
Same here on Orbiter 2006. The whole vessel disappears, leaving only a generic HUD "cockpit". I'll try it out on 2010...
Seems like the same problem for jmw's Concorde, with the same symptoms:
http://www.orbiter-forum.com/showthread.php?t=9724#post114512 I'm not sure if they found a solution, not being a dll expert myself, but they have a lot to say...
A great shame, for TI cockpits are cool and the TX is awesome.
EDIT...
With 2010P1:
Just installed TX, Payload Manager and TI's TX, and followed Intercepter's advice --> Works fine!?!?!?
The only thing that I've changed recently is reinstall MS .NET Framework (no idea!) and update DirectX.
Sorry to be not very helpful.