Hello Sir,
After review your example website what we understood is as follows:
1) It is classified type website.
2)User 1st select country, then select state,then select city.
3) User need to select category and subcategory.
4) User have to select that is he a buyer or seller.
5) If there are posts under country/state/city/category/subcategory will come and user can purchase.
6) If user is seller then he can post his items under country/state/city/category/subcategory.
7) Posts will be listing after admin approval.
8) There are 4 add space (top/bottom/left/right).
9) Advertisers can bye space and post their ads for x amount of time.
10) Admin have full control (Ad management/ classify ads management/buyer management/seller management/commission management/static pages management)
Looking for a chat.
Thanks,
Webtechno09