Customize the front page & other pages. Display your posts with different layouts.
Download the plugin
With your FTP program, upload the Plugin folder to the wp-content/plugins folder.
Activate the plugin
More detailed information here: http://codex.wordpress.org/Managing_Plugins
example how to get started fast:
Go to the Site Layout Customizer menu and edit Layout 1 to your liking.
Add a new page and paste in the following shortcode:
publish and view the page.
Now layout 1 should be showing on that page.