you need to create a print css file to control how the page looks printed.
found this page through google:
http://www.onextrapixel.com/2009/05/05/how-to-create-a-simple-print-css-for-your-site/
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.