This is the blog template. All pages created below will show up in the pagelist as previews. To make all pages on your site showing up here, activate the Show All Pages in Pagelist checkbox here.
There you will find also a bunch of other options to try out.
Note the filter button, to filter the shown pages by tags. Every page can have multiple tags.
This post uses linked images from Project One as teaser and slideshow images. Therefore check out the Image Teaser and Image Slideshow variables. Of course you can upload other images as well, but before reset the image variables.
This is the Text Teaser of the Post template of Theme 01. Upload images to show up in the slideshow and define one of them as your teaser image by setting the Image Teaser variable.
Note the other blog post to the right. You can define tags for every page or post in the Page Settings. Pages having tags in common with the current page will be shown as related pages.