454269 Admin Back End

I need a simple back end for an existing real estate listing database structure. Requirements: 1. Admin/Agent login with restrictions depending on login/administrative variables 2. Admin ability to edit users, privileges and all listings 3. Admin login can add/edit/delete Agents 4. Agents can login and add/edit/delete listings that they post 5. Multiple categories for property listings All DB structure and HTML/CSS provided Very simple but I am too busy with other projects. If no reasonable bids I will just do it myself... Deadline Nov 7 2010