[HMBeaty]

Replace all of this:

<if condition="$forum[forumid] == "50"">
 <!-- no ads-->
 <else />
<div style=""><div style="width: 700px; height: 270px; margin-left: auto; margin-right: auto; clear: both;">
 <div style="width: 350px; float: left;">
 <center>
 <!--/* OpenX iFrame Tag v2.8.7 (Rich Media - OpenX) */-->
 
 <!--/*
   * This tag has been generated for use on a non-SSL page. If this tag
   * is to be placed on an SSL page, change the
   *   'http://www.xxxxx.com/openx/www/delivery/...'
   * to
   *   'https://www.xxxxx.com/openx/www/delivery/...'
   *
   * The backup image section of this tag has been generated for use on a
   * non-SSL page. If this tag is to be placed on an SSL page, change the
   *   'http://www.xxxx.com/openx/www/delivery/...'
   * to
   *   'https://www.xxxx.com/openx/www/delivery/...'
   *
   * If iFrames are not supported by the viewer's browser, then this
   * tag only shows image banners. There is no width or height in these
   * banners, so if you want these tags to allocate space for the ad
   * before it shows, you will need to add this information to the <img>
   * tag.
   */-->
 
 <iframe id='xxxx' name='xxxx'   src='http://www.xxxx.com/openx/www/delivery/afr.php?zoneid=3&amp;cb={random}&amp;ct0={clickurl}'   frameborder='0' scrolling='no' width='300' height='250'><a   href='http://www.xxxxx.com/openx/www/delivery/ck.php?n=axxxa&amp;cb={random}'   target='_blank'><img   src='http://www.xxxx.com/openx/www/delivery/avw.php?zoneid=3&amp;cb={random}&amp;n=axxxa&amp;ct0={clickurl}'   border='0' alt='' /></a></iframe>
 </center>
 </div><div style="width: 350px; float: left;">
 <center>
 <!--/* OpenX iFrame Tag v2.8.7 (Rich Media - OpenX) */-->
  
  <!--/*
    * This tag has been generated for use on a non-SSL page. If this tag
    * is to be placed on an SSL page, change the
    *   'http://www.xxxxx.com/openx/www/delivery/...'
    * to
    *   'https://www.xxxxx.com/openx/www/delivery/...'
    *
    * The backup image section of this tag has been generated for use on a
    * non-SSL page. If this tag is to be placed on an SSL page, change the
    *   'http://www.xxxx.com/openx/www/delivery/...'
    * to
    *   'https://www.xxxx.com/openx/www/delivery/...'
    *
    * If iFrames are not supported by the viewer's browser, then this
    * tag only shows image banners. There is no width or height in these
    * banners, so if you want these tags to allocate space for the ad
    * before it shows, you will need to add this information to the <img>
    * tag.
    */-->
  
  <iframe id='xxxx' name='xxxx'   src='http://www.xxxx.com/openx/www/delivery/afr.php?zoneid=3&amp;cb={random}&amp;ct0={clickurl}'   frameborder='0' scrolling='no' width='300' height='250'><a   href='http://www.xxxxx.com/openx/www/delivery/ck.php?n=axxxa&amp;cb={random}'   target='_blank'><img   src='http://www.xxxx.com/openx/www/delivery/avw.php?zoneid=3&amp;cb={random}&amp;n=axxxa&amp;ct0={clickurl}'   border='0' alt='' /></a></iframe>
 </center>
 </div></div></div>
 </if>

With this:

<vb:if condition="$forum['forumid'] == 50">
    <!-- no ads -->
<vb:else />
    <div style="">
        <div style="width:700px;height:270px;margin-left:auto;margin-right:auto;clear:both;">
            <div style="width:350px;float:left;">
                <center>
                    <iframe id='xxxx' name='xxxx' src='http://www.xxxx.com/openx/www/delivery/afr.php?zoneid=3&amp;cb={random}&amp;ct0={clickurl}' frameborder='0' scrolling='no' width='300' height='250'><a href='http://www.xxxxx.com/openx/www/delivery/ck.php?n=axxxa&amp;cb={random}' target='_blank'><img src='http://www.xxxx.com/openx/www/delivery/avw.php?zoneid=3&amp;cb={random}&amp;n=axxxa&amp;ct0={clickurl}' border='0' alt='' /></a></iframe>
                </center>
            </div>
            <div style="width: 350px; float: left;">
                <center>
                    <iframe id='xxxx' name='xxxx' src='http://www.xxxx.com/openx/www/delivery/afr.php?zoneid=3&amp;cb={random}&amp;ct0={clickurl}' frameborder='0' scrolling='no' width='300' height='250'><a href='http://www.xxxxx.com/openx/www/delivery/ck.php?n=axxxa&amp;cb={random}' target='_blank'><img src='http://www.xxxx.com/openx/www/delivery/avw.php?zoneid=3&amp;cb={random}&amp;n=axxxa&amp;ct0={clickurl}' border='0' alt='' /></a></iframe>
                </center>
            </div>
        </div>
    </div>
</vb:if>