To remove any on the top buttons like [last uploads] or [most viewed] go to theme.php located in--> /themes/your theme/ theme.php directory and coment out any of the buttons that you don't want.

Here is an example of comenting out the [top rated] button. (In red)

 <!-- </td>
          <td><img name="buttonright1" src="themes/hardwired/images/buttonright1.gif" width="7" height="25" border="0" alt="" /></td>
          <td><img name="spacer" src="images/spacer.gif" width="5" height="25" border="0" alt="" /></td>
          <td><img name="buttonleft1" src="themes/hardwired/images/buttonleft1.gif" width="7" height="25" border="0" alt="" /></td>
          <td style="background: url(themes/hardwired/images/buttoncenter.gif);">
           <a href="{TOPRATED_TGT}" title="{TOPRATED_LNK}">{TOPRATED_LNK}</a> -->