91349 Clickbank Product Cost

I need a script that will get the product cost of all clickbank products (12,000). We already have a database full of the clickbank data including the link to the order page. We have already tried using CURL and it doesn't work 100% of the time the way we have it programmed. The format of the url's that you will need to "Scrape" are: [login to view URL] There seems to be a problem with the "Redirect" that occurs when visiting the following page. All we need is a php function that returns the "Cost" of the item based on the URL provided. We can provide examples of our attempts using php's CURL function.