Thanks for the hack...

Update for VB3.0.3 professional style:

Go to Postbit template

Find


<table width="175" border="0" cellspacing="0" cellpadding="0">
<tr>
<td><fieldset><legend><a href="member.php?$session[sessionurl]u=$post[userid]">$vbphrase[vbnl_profile]</a></legend>
<table width="100%" border="0" cellspacing="0" cellpadding="1">


after add


<if condition="$post['theprofilefieldnumber:field5]"><tr>
<td valign="baseline" align="right" nowrap="nowrap"><span class="smallfont"><font color="#666666">Name of the field:</font></span></td>
<td valign="baseline" align="left" nowrap="nowrap"><span class="smallfont">$post[theprofilefieldnumber:field5]</span></td>
</tr></if>