Amazon Pagescrape Script

I need a simple script written in PHP do the following: 1) User Enters ASIN number for a product (ASIN is a unique inventory number for every Amazon product) Example: B001BYM048 2) Script uses the ASIN number to look up the product on Amazon. 3) Software returns the following information about the product: Main Product Category, Amazon Best Sellers Rank. Example (using B001BYM048): Main Product Category: Arts, Crafts & Sewing Amazon Best Sellers Rank: 1107 (this may change slightly but that's OK) That's it! Really simply script for someone who knows PHP.