the logo is inserted at the top left-hand corner of each page, automatically:

 

 

This, along with color, and individual customer logos, for each of your hosted domains, can be inserted by using the SETTINGS ===> PERSONALIZATION feature, and the following code:

 

div#PageHeader h1 {
    background: url("https://securemail.chicagonettech.com/ClientImages/CNTlogo150.jpg") no-repeat scroll 0 0 rgba(0, 0, 0, 0);
    float: left;
    font-size: 0;
    font-weight: normal;
    height: 40px;
    line-height: 1;
    margin: 10px 0 10px 55px;
    overflow: hidden;
    width: 210px;
}

div#PageHeader {
    background: url("https://securemail.chicagonettech.com/ClientImages/CNT/CNTlogo150.jpg") no-repeat scroll 50px 5px #444444;
    height: 60px;
}

ul.headermenu {
    list-style: none outside none;
    margin: 1.2em 0.25em 0 !important;
}

div#footer {
    bottom: 0;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1) inset;
    color: #999999;
    font-size: 0.65em;
    left: 0;
    padding: 1em;
    position: absolute;
    right: 0;
    top: auto;
    z-index: 1;
}


div.infopanel > div {
    font-size: 0.75em;
    padding: 0 1.25em;
    margin: 15px 0px;
}