Hi Andre,
You will first need to go the Flexform for the e-candle wec_discussion plugin. Then, go to the Display tab and set the Max 'message field' length to whatever value you would like.
Then you will need to copy and edit the template -- wecconnector-candle.tmpl. It is located in the typo3conf/ext/wecdiscussion/res/ folder. Put it in fileadmintemplates or wherever you would like. Then you will have to set the tx_wecdiscussion_pi1.templateFile = fileadmintemplateswecconector-candle.tmpl (or to wherever you put it in fileadmin).
In the template file,find the ###TEMPLATE_DISPLAYENTRIES### section. Change the <div> line with height: to something greater -- i.e. 300px or more. See the code below for the exact code needed to change. Try out what works best for you and looks good. You can also set the colors here - i.e., add a background-color:#602020 for a dark red...or whatever you would like.
-Dave
<div class="tx-wecconnector-entry" style="width:175px;height:210px;border:3px groove #b6d;overflow:hidden;">
<div style="float:right; padding:4px;">
<img src="typo3conf/ext/wec_connector/res/candle.gif" height=93 width=10>
</div>
<div style="margin:4px; font-size:12px;font-face:Times New Roman,Verdana,sans-serif;">
###MESSAGE###
</div>
<div class="tx-wecconnector-messageinfo" style="float:left; font-size:11px; margin:0px; padding:0px; margin-left:4px;margin-top:4px;border:0;">
by ###NAME### ###LOCATION### [###DATE### ###TIME###]
</div>
<div style="float:left; font-size:10px;padding-top:8px;">
<span class="tx-wecconnector-button">###MODIFY###</span>
</div>
</div>