Importing .blend files from blender2.49b to unity

Hello,

I'm having a difficult time trying to import cities I've made with BlendedCities in blender 2.49b to Unity. Whenever I save a city as a .blend and import it, all it will give to me is a invisible cube shape. When I export from blander as a .fbx file, I also get nothing, or better to sa that either it doesn't import right or it just doesn't work. Please help, I'm using unity for a project and need these cities, so again, please assist.

Make sure one Mesh has not more than 65k verts.