Go to ACP >> Look & Feel >> Choose Your Skin >> Go to Forum view and Select Forumindextemplate
And Search for <tr class='header hide'> by pressing ctrl F
you will see all this:
<tr class='header hide'>
<th scope='col' class='col_f_icon'> </th>
<th scope='col' class='col_f_topic'>{$this->lang->words['forum_topic']}</th>
<th scope='col' class='col_f_starter short'>{$this->lang->words['forum_started_by']}</th>
<th scope='col' class='col_f_views stats'>{$this->lang->words['forum_stats']}</th>
<if test="canSeeLastInfoHeader:|:$this->memberData['gbw_view_last_info']"><th scope='col' class='col_f_post'>{$this->lang->words['forum_last_post_info']}</th></if>
<if test="topicsismod:|:$this->memberData['is_mod'] == 1">
<th scope='col' class='col_f_mod short'><input type='checkbox' id='tmod_all' class='input_check' title='{$this->lang->words['topic_select_all']}' value='1' /></th>
</if>
</tr>
<!-- BEGIN TOPICS -->
<if test="hastopics:|:is_array( $topic_data ) AND count( $topic_data )">
<foreach loop="topics:$topic_data as $tid => $data">
{parse template="topic" group="forum" params="$data, $forum_data, $other_data, $inforum"}
</foreach>[/html]
and replace with this:
[html]
<tr class='subhead altbar'>
<th scope='col' colspan='<if test="endannouncements:|:$this->memberData['is_mod'] == 1">6<else />5</if>'>
<if test="$this->hasPinned=0">Forum Topics</if><if test="$this->hasPinned=1">Pinned Topics</if>
</th>
</tr>
</if>
<!-- BEGIN TOPICS -->
<if test="hastopics:|:is_array( $topic_data ) AND count( $topic_data )">
{parse striping="forumTable" classes="row1,row2"}
<foreach loop="topics:$topic_data as $tid => $data">
<if test="$data['pinned']">
<if test="$this->hasPinned=1">
</if><else />
<if test="$this->hasPinned">
<if test="$this->hasPinned=0">
</if>
<tr class='subhead altbar'>
<th scope='col' colspan='<if test="endannouncements:|:$this->memberData['is_mod'] == 1">6<else />5</if>'>
Forum Topics
</th>
</tr>
</if>
</if>
{parse template="topic" group="forum" params="$data, $forum_data, $other_data, $inforum"}
</foreach>
preview: