I don't know about G2... Might give Great Planes or Knife Edge a call and see what they can do, and if there's any sort of warranty on an older product. In the meantime, you can always plug your real transmitter in and just use the Interlink as an interface. Also, there are plenty of how-to posts in these and other forums about using other joystick controllers with G2 and/or other sims.... might take some digging, but I know they're there!

-Case