Fügt einfach diesen HTML-Code in eure Homepage ein:
<p>
<a href="http://computer-science.jimdo.com"><img border="0" src="http://computer-science.jimdo.com/s/cc_images/cache_2625371856.gif?t=1266536282"
id="image_2604544456" alt="" height="60" width=
"486" name="image_2604544456" /></a>
</p>