The first add-on for FS2004 from developers perfect flight is expected to be available in August. Approaches is a program designed to challenge the flight sim pilot. This is what they have to say..

All simmers knows that Microsoft Flight Simulator cannot lets to set up an “approach only” situation to fly. So, we have decided to fill up the gap developing FS2004 Approaches! add-on for FS2004.

FS2004 Approaches! comes for Microsoft Flight SImulator 2004 but Fs2002’s users can use it too.

We’re currently developing many ABL approach adventures that covers a large variety of worldwide Airports. Adventures includes: In-flight start situation, real weather, Complete Ai/ATC interaction; Ai/Traffic available during the adventure; Speed restriction; Flight rating;  Cabin announcement; gear, flaps, parking brakes, warnings; Check List;  Speeds Calls, flaps, gear; GPWS;  Radar Altimeter

The product will be available in August