To use your facebook page. Go to Admin > Plugins > FlatBox Theme settings and set your Facebbok, Twitter etc. full URL and save it.
If you use Q2A core system to create pages than you can set navigation item in footer by selecting option After links in footer
in Position
dropdown list.
To change footer column content, it is difficult and you have to modify the footer_columns()
method in qa-flatbox-theme.php
file. Find it around line #596
Code
$column_items = array(
$this->footer_advert(),
$this->fb_like_box(), // just replace your own code or method
$this->twitter_widget(),
$this->social_icons(),
);
Here each method in array represents one column in footer (start from left to right). So to change facebook like box with your own code, you need to replace $this->fb_like_box()
method with your own.