ASAP - Small (simple) fixes for Drupal website

Hi, I am quite new to Drupal... and so I need some help - guidance - on how to figure out how to implement some of the built in feutures in a theme. I.e. someone who just could explain how I make these work, or maybe simply put it on the site so that I can see how it is done. (Like "here you find the code snippet for this".. and so.) Am a beginner to this! This is the theme: [login to view URL] This is what I need to know how it is done: - Use the round images function for the theme. - Use the social icons (as featured in the menu and foother here: [login to view URL]) - Use the field for entering email for newsletter subscription (as featured in the footer) - Use the set of icons. Thanks /I