Customizing joomla EventList component

I need the following customizing done to the joomla component: EventList; * Adding new events need to contain the following "fields": - Title - Category - State <- Dropdownlist. I provide the states ( only 19 needed ). - City - Date starting <-- The FRONT END input of the date needs to be in the format dd-mm-yyyy. At the current state one have to input yyyy-mm-dd and the component alters this to dd-mm-yyyy afterwards...I need however users to be able to INPUT dd-mm-yyyy. - Date ending (<--- need to be optional only) These features already exist... but I need the venue part removed, also the time start/ending is not needed. All the fields mentioned above need also to be searchable; Users need to be able to search all events based upon: - Category - States <-- dropdownlist - City - Dates - start date / end date ----------------------------------------------------