The Reboot theme for your store has several pre-formatted footer templates from which to choose.
To change these, you go to:
Reboot > Template Settings
In the orange menu bar, select Layout
Scroll down to Footer Section.
Find Footer Styles and scroll over to see the options it gives. Select one. Hit Apply at the bottom of your screen and then visit the customer side of your store to see what it looks like.
You can adjust what information appears in each footer section by setting them in the sections beneath Footer Styles (the sections listed as Column 1 content, Column 2 content, etc). Please note, if your footer only has 3 columns the selections you make in the first 3 sections are the ones to appear and the 4th section will not).
You can move your content around and change the footer template as many times as necessary (without knowing any coding) until you find an option you like.