TerraEd Pro lets you manage blitz terrains very easily. Import your 3D objects (3DS,B3D,X) and position, rotate or scale them with the mouse. You can save your maps for further use in Blitz. It is so easy and takes only a few lines of code !
http://libya82.com/Free-Stuff/Terra-Ed-Pro-Terrain-Editor-Pro-2.2.html
