Ninja Accordion: No Custom Css in Ninja Explorer?

I am trying to customize the Greyboard style for ninja accordian, or create my own style. It says that you can "Choose which style you want to use, if your template supports NinjaAccordion styling choose inherit (i dont see inherit anywhere though even though it is the simple Greyboard style), if you would like to use your own custom css, choose custom (i dont see a custom option either?) and add your style to the /modules/mod_ninja_accordion/resources/styles/custom/ directory", but in Ninja Explorer these subfolders, i.e. "resources" do not show up. Is this the way it is supposed to be or is "resources" subfolder not supposed to show up in Ninja explorer? I extracted the files and edited them with dreamweaver, the zipped the files again and re=uploaded it and it worked fine, it just seams there would be an easier way to do this through ninja explorer and the Joomla CSS editors.
Thanks
Steve

Thanks for the reply. For what its worth I am using Joomla 1.5
I do see the "Styles" folder when I extract it onto my computer, but I don't see the "Styles" folder in ninja explorer. The only additional folder that can be seen in ninjaxplorer is "tmpl" folder.
Hope this helps.
Steve