Classifieds website required

I have a classifieds website script whcih is already uploaded to my server. I am trying to organise all the worlds country and cities/towns to be added in (I know thats a sperate gig, but you can quote on that too) I bought the site from diggsclassifieds however I cant get in conatct with them to remove their copyright (as they sold me the scirpt full source code and said they would remove it but havenet , so thats a must if u take on the job) I can show u what has been uploaded no problem there, however i require the extra to be done to the site (feel free to offer the option of starting from scratch using your own code) I need the countries ot be organised into continents eg Americas-USA-California-Los angeles (sub area within the city required too) Users will have the option in being able to pick mulitple locations to search for goods services eg Los Angeles (ALL)+Santa monica+Bakerfield etc etc In other words users can select multiple locations (but NOT Los Angeles and Berlin/germany) So only nearby locations (all available) Users will have the option to select ads that have photos/no photos and that have been posted by either private individuals and or organisations/companies fields for searching for ads will be : photo / no photo private,organisation or both price form:to multiple location fields within that county/state , the ones to focus on is USA Canda UK ads wil be live for 30 days then archived users will have an account to monitor ads placed, deleted, archived. banned, draft Facebook logon a MUST extra fields for users to fill in in their "account" info will include facebook page facebook username ebay username ebay page msn yahoo tels address AIm ICQ name address DOB emails Please note other than email, first surname mobile number other options to be be a given a "rather not say" option to user clock on home page showing users local time when ad is opened , users can disable their contact detail sso can only be contacted using a form email notofications a must I must be able to place text links on all ads (for advertising) disbale google ads disbale banner ads (however preinstall them , perhaps I may change my mind later) google maps a must Ad ID must have a unique number I will ad in fields for categories Preinstalation for charging for ads to include PAYPAL,Moneybooker, Neteller,Mastercard/VISA/Discovery much more to say will provide updates