Say you have this:
Code:
<div id="footer">
<img id="left_img" src="/path/to/file.jpg" />
<ul>
<li><a href="">Link</a></li>
</ul>
</div>
Then your CSS would look like this...
Code:
#footer img#left_img {
float:left;
margin:5px 0px 5px 10px; /*Top Right Bottom Left*/
}