I have Zen cart 1.38 ... I am so sorry if this question has been asked before but I searched the forums abd could not find it.

I am more of a graphic designer & artist. So, I have basic knowledge of websites but not code or CSS. I have Dreamweaver CS3 and was wondering why, when I open a stylesheet.css than I cannot preview it and edit it in the Live View WYSIWYG frame (or at least I coannot figure out how to get to it)? Am I missing something? Usually when I create a simple web page with dreamweaver, it gives me the bility to see the CSS coding AND the live editable preview of the page. How can i achieve the same with stylesheet.css?

Thank you