Hello,
the display variables can be set via the module settings itself.
Log into the WB backend, go to pages and click on the news page. Press the button Settings and search for a field called Post Header.
Change or remove the following code lines which display the Name, Date and Time.
<tr>
<td valign="top"><b>Posted by [DISPLAY_NAME] ([USERNAME]) on [DATE] at [TIME]</b></td>
</tr>
Regards Christian