[unitedpunjab]

This is my Template Code:

<if condition="$show['threadicons']">
    <td class="alt2" align="center" valign="middle">
    <if condition="$show['threadicon']">
            <if condition="$displaythumbs">
                <if condition="($thread['attachmentid']) AND ($thread['thumbsize'])">
                        <a href="showthread.php?$session[sessionurl]t=$thread[threadid]">
                          <img src="attachment.php?attachmentid=$thread[attachmentid]&stc=1&thumb=1" alt="" border="0" />
                    </a>
                     <else />
                            <img src="$stylevar[imgdir_misc]/nothumb.jpg" alt="" border="0" />
                     </if>
            <else />
                     <img src="$thread[threadiconpath]" alt="$thread[threadicontitle]" border="0" />
            </if>
    </if>
</td>
</if>

And This is My Plug IN Code:

$tt_thumbsforums = array(67, 74, 12);
$tt_displaythumbs = false;
if (in_array($forumid, $tt_thumbsforums)) {
    $tt_displaythumbs = true;
    $hook_query_fields .= ", attachment.thumbnail_filesize AS thumbsize , MIN(attachment.attachmentid) AS attachmentid ";
    $hook_query_joins .= "LEFT JOIN " . TABLE_PREFIX . "attachment as attachment ON(attachment.postid = thread.firstpostid) ";
    $hook_query_where .= "GROUP BY thread.threadid ";
}

Followed Every Single Instruction Given in Installation file But Nothing Happened. Nor it showing any attachment image as a Thumbnail or neither any "No Image" Thumbnail.

And I m using vB 3.6.0 RC 3