Hi GW, image background for "most popular: is located in the home.css file, starts on line 128. background for the pods starts on line 43 (second block)
#whatsNew {
background-image:url("../Images/icon_whatsNew.png");
height:35px;
margin-left:7px;
margin-top:7px;
position:absolute;
width:32px;
}
#featuredWrapper .box {
background-color:#CCCCCC;
border:1px solid #8C8E94;
float:left;
height:200px;
margin-right:4px;
width:325px;
}
i would suggest using firefox and the firebug plug-in to help you tweak pages.
im hoping this helps, and good luck.