script for webcam (asp or js)

Script for webcam. I have a sourvelliance wi-fi webcam (DCS-2121) that every minute send a snapshot on my web server using ftp protocol. Every day a folder is crated automatically from webcam on webserver with name of date yyyymmdd (ie [login to view URL]\20110220\ for today). Every hour a subfolder is created whit name the number of hour hh (i.e. [login to view URL]\20110220\10\ at ten o clock) Every minute a jpg is send on server with filename: [login to view URL] (i.e [login to view URL]\20110220\10\[login to view URL] My request: i need an php webpage (i.e. [login to view URL] ) or a cron job that do: 1) display the "last" image ready 2) if possible create a copy of last image as [login to view URL] 3) if possible delete all folder, subfolder and images jpg from all folder with date older that today (delete \20110218 \20110219 but let \20110220 ) to avoid go over of quote on server space disk) Please detail in your offer if options 2 and/or 3 are possible to do)