You can accomplish this directly in CSS SCulptor.
If you click the button to edit the css, on the layout tab, set the select list next to footer to Fixed.
this will set the footer to be fixed to the bottom of the page.
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.