This plugin is used to show posts under particular category in widget and in a page.
An answer to that question.
How do I show post of particular category using this plugin? a) Find 'Appearance' menu in your WordPress admin panel. Click on "widget" sub-menu. b) Drag & Drop 'Category Post List' widget in Widget area. c) Configure the different widget options.
Can I change date format? Yes, you can change date format. You can use any PHP standard date format e.g. F j,y for November 28, 2012.
Can I change different effects? Yes, you can change effects of displaying your post of particular category. Effect option is provided by this category.