Already there is a fix for this.
How can display an image instead of text after the selection of mood
Replace the contents of the vmoods template with the following
Code:
<li id="vmoods_list" class="popupmenu">
<a href="javascript://" class="popupctrl">{vb:phrase vmoods_my_mood} <img id="vmoods-mine" src="{vb:raw vboptions.bburl}/vmoods/{vb:raw vboptions.vmoods_icon_set}/{vb:var bbuserinfo.vmood}.gif" /></a>
<ul id="vmoods" class="popupbody popuphover" style="height:125px;overflow:auto;">
<vb:each from="vmoods_list" value="mood">
<li class="{vb:var mood}"><a class="vmood" href="index.php?" title="{vb:var mood}">{vb:var mood}</a></li>
</vb:each>
</ul>
</li>