Thank you for your quick answer.
Well yes and no. Its the same if I do a listing for cars. it will be cars>brand>model or if main category is nightlife sub will be Bars, nightclub, Discotheke, live Music and so on. and because the selection of a category is not as select first the main category then the second then the 3rd. all are under one list to select. so no hierarchy selection. I also have seen that in no of your demos are subcategories but this is one of the main pillows of a listing directory ( its my opinion)
Thank you
Aki