Only found out this by madly meddling with Php files, anywho..
Basically go into components/com_content/content.HTML.php
insert this in line 458
<div align="center"><img src="<?php echo $mosConfig_live_site;?>/templates/<?php echo $template; ?>/
images/yourimagename.jpg" width="
imagewidth" height="
imageheight" border="0"/>
replace the bolded out type with your image (including image folder, within your template) width and height.
This will allow you to have an image that is relevant to your current template..
I have used it on my site here:
www.sequel-trilogy.net/start