try this in Admincp->Settings->options->plusone (by vbfixer.com) options , and change red code
Code:
<div style="float:left">
<script type="text/javascript" src="http://apis.google.com/js/plusone.js"></script><g:plusone size="medium" count="true"></g:plusone>
<!--Twitter button starts--><a href="http://twitter.com/share" class="twitter-share-button" data-count="true" data-via="TWITTERNAME">Tweet</a><script type="text/javascript" src="http://platform.twitter.com/widgets.js"></script> <!--Twitter button ends-->
<iframe src="http://www.facebook.com/widgets/like.php?href=http://www.YOURWEBSITE.com/showthread.php$session[sessionurl]?p=$post[postid]&layout=button_count&show_faces=false& scrolling="no" frameborder="0" style="border:none; width:90px; height:20px"></iframe>
</div><br><br>