Coupon scraper script

Today im using the Coupon clipper plugin. I need a script for this wordpress theme to scrape coupons from other coupon pages. Script should be working like this. 1. Go to a root URL of a specified page. 2. Then use the links to spider itself further down the site. 3. When it encounters a coupon, it should parse it and add it to the database. I need the script to fill in the following information: - Coupon Title: - Store: - Coupon Category: - Coupon Type: - Destination URL: - Expiration Date: - Tags: Separate tags with commas Full Description: My site is at [login to view URL]