Using Textpattern you can put your content in different categories. You can setup separate categories for your articles, links, images and files. To setup your categories login to your site’s admin area and navigate to “Content” and select the “Categories” tab:
In the next page you can setup your categories. Each one is setup in the same way – simply enter the name of the category. If you wish the new category to be a child category, select “parent” category from the dropdown menu: