Hello,
1. This can be edited here:
#s5_footer_area_inner {
background: #101010 none repeat scroll 0 0;
padding-bottom: 50px;
padding-top: 30px;
}
template.css line 778
2. These can be edited in the /templates/theclassifieds/vertex/footer.php file
3. The menu items are located in the Joomla menu manager area. And the actual modules are published to the bottom row positions 1 - 4