ASP.NET Web application for user management

A very simple / any webinterface (address via [login to view URL] or similar) with two functions : - setting new account (editable fields for entering login and password) and 'create' button. In return confirmation if done, or error if wrong (why wrong ?) - edit phonebook - editable fields for entering - - login and password - - sync mode, - - '**' as string to be prefix of phone numbers starting with zero (editable - for to input other string) - - '##' as string to be suffix of name of phone numbers starting with zero (editable - for to input other string) - - access to either log or report of all changes made (for to have data and be able do reverse operation) Access to the SQL database would be granted to allow winning bidder the necessary fields to reference.