blog scrape project

There is a blog site that posts a new picture every few hours and then 1 bonus pic that requires clicking on [1] link. I want to save main picture as [login to view URL] [login to view URL] etc... update a text file with that filename on each line. Then grab the extra pic and name that [login to view URL] [login to view URL] etc the naming structure would be a number [login to view URL] for the primary picture and then [login to view URL] for the bonus picture This project contains adult material... Create a simple php script that I can run on my home server as a cron job to do the above tasks..