Bringing in Stylesheet not going as hoped

I was hoping I could make our stylesheet visible in FCK by using this technique

You can precisely simulate the output of your site inside FCKeditor, including background colors, font styles and sizes and custom CSS definitions. To do that, just point this setting to the CSS file that you want the editor to use. You may use a simple string, setting the CSS file path, or even a string array, with more than one CSS file to be loaded. Example:

FCKConfig.EditorAreaCSS = '/mycssstyles/editorstyle.css' ;