Ah gotcha - you mean Angel of the North!

Well first you've gotta get Easy Object Designer to create the object with and you'll need a graphics prog like CorelDraw or similar to make the textures. Then you make a scenery macro (API file) of the object.

Then you'll need to get hold of FSSC (Flight Simulator Scenery Creator) or Airport for Windows and having found out the exact latitude and longitude position of the Angel next to the A1, you'll have to place the object with the correct scale exactly at that point, pointing in the right direction.

Then you use FSSC or Airport (whichever one you chose) to create a scenery bgl file that can be installed in flight simulator.

Dead easy!