Hi stazzy,
You will need to move the block code which renders the date from header block to the topnav block.
You can find the associated PHP file for header block here: root/templates/ja_teline_v/tpls/blocks/header.php, look for:
<div class="col calendar">
<div class="col-inner">
<span class="number date"><?php echo date('d') ?></span>
<div class="text">
<span class="day"><?php echo JText::_(date('D')) ?></span>, <span class="month"><?php echo JText::_(date('F').'_SHORT') ?></span>
</div>
</div>
</div>
and move it to place you want in topnav block: root/templates/ja_teline_v/tpls/blocks/topnav.php
Of course, you must add additional style for it after that.
Hope this helps.
