Did you buy the 3D NS430 for L-39C ? Can you activate 2D Overlay (LShift+LAlt+B) ?If yes go in the module manager to install your module, maybe it is not, and as Cnuke said, it's only for OpenBeta (2D overlay doesn't works with Oculus) ;)
It would be nice to be able to choose the installation path, because when you have custombuilt (ex DCS, DCS.openbeta, DCS.XX) installer can't see the custom installation :smilewink:
We are talking about fighter jets, and we have choice in DCS, I think we can find L-39 with imperial instrumentation, probably more easy in USA :smilewink: