Here's the code to add a
Stirrdup button:
Code:
<!-- Stirrdup -->
<a href="http://stirrdup.com/submit?linkurl=$vboptions[bburl]/showthread.php?t=$post[threadid]&subject=$thread[title]" target="_blank">
<img class="inlineimg" src="$stylevar[imgdir_button]/stir-16x16.gif" alt="Share on Stirrdup" border="0" /></a>
Then upload this picture
Stirrdup is built on vBulletin too.