The general stucture has some similarities. The objexts seem to be in a .msh format and the textures are in .dds format, It seems that .ini files put the structures in place.
So not stopped by any knowledge knowledge I thought, when it is possible to convert the .msh (mesh) file and .ini into .bgl and convert the .dds file into (dtx3) .bmp there might be a change to have this scenery working in FS2004.
While writing this, I realise that the the system to indicte a position is most likely completely different as well. So the best achievable is perhaps to convert the structures, but it will most likely be impossible to save or convert the positioning.
Its a pity as the way FS2004 or even FSX looks in that area is completely different than reality. The l;aunch site is in the savanne and not in the rain forest.
Cheers,
Huub