In my opinion 'lightmaps' should really be called 'shadow maps'.
In essence, they are use to burn shadows onto the existing textures applied to the world geometry. In your case, the cubes.
I have a couple of light mapping applications that I use regularly (i.e. BSP Factory, Quill 3D) and they both require Blitz or BSP light entities to be placed in the scene.
The bottom line is that you still need the light entities to be present, or the scene will just be completely black - irregardless of whether you have a lightmap or not.
As for real-time lighting, I think you may be getting confused with dynamic lighting effects - such as the real time movement of a weapons plasma ball down a corridor for example.
In essence, they are use to burn shadows onto the existing textures applied to the world geometry. In your case, the cubes.
I have a couple of light mapping applications that I use regularly (i.e. BSP Factory, Quill 3D) and they both require Blitz or BSP light entities to be placed in the scene.
The bottom line is that you still need the light entities to be present, or the scene will just be completely black - irregardless of whether you have a lightmap or not.
As for real-time lighting, I think you may be getting confused with dynamic lighting effects - such as the real time movement of a weapons plasma ball down a corridor for example.