awblain, you might work your way through the attached to gain some understanding. As for inlets producing thrust, aerodynamasists resort to all sorts of tricks to optimise performance, and even the inlets on your bog standard Airbus and Boeing produces thrust of its own accord, by careful design of the airflow path around the inlet lip.
Short Index of Propulsion Slides
During the supersonic cruise Concorde derived its thrust - 8% engine, 29% Nozzles, 63% intakes.