You can do this in several ways, as a background image in #blogtiltle in your css, ie like what I have for mine:
#blogtitle {
margin: 0px;
padding: 5px 10px;
height: 290px;
text-align: left;
background: transparent;
color: #fff;
background-image: url(/images/layout/creative/random.gif);
background-position: center;
background-repeat: no-repeat;
}
or you can go into the template and find the div for #blogtitle and just put in a normal image src there to call the background image, ie:
<div id="main">
<div id="blog">
<div id="blogtitle">
<img src="/images/toplogo.gif" alt="logo" height="30" width="100" />
</div>
you should see the div theres, that’s whre you’d stick the image.
Hope that helps.