Help with N2km model ??

Im importing the n2km model of the Lakers backboard in Blender and i modify it a little bit , but when i try to export it as n2km it says : Error No n2km object on scene , WTF does this mean , im completely frustrated all day long with this thing , it doesnt work with obj either , i exported it as obj , even implemented it in the game with the 3D tool , it said succesful import , but nothing changes , the n2km plugin in my 3d max is not working , and with Maya the obj as i mentioned is not working either , plz respond and help !!!

make sure that u are not in edit mode when you export it,it's only work in object mode when you want to export them...oh,and you must select them all...