.index_av .intro { width:99px; margin-left:18px; float:left; }
.index_av .intro:first-child { margin-left:8px; }

<div class="index_av f_l">
        <div class="title">Confident tutors (with video/audio presentation)</div>
        <div class="intro">
            <img src="/picture.php?path={%$vol.Photo%}&w=93&h=118" border="0">
        </div>
        <div class="intro">
            <img src="/picture.php?path={%$vol.Photo%}&w=93&h=118" border="0">
        </div>
        <div class="intro">
            <img src="/picture.php?path={%$vol.Photo%}&w=93&h=118" border="0">
        </div>
        <div class="intro">
            <img src="/picture.php?path={%$vol.Photo%}&w=93&h=118" border="0">
        </div>
        <div class="intro">
            <img src="/picture.php?path={%$vol.Photo%}&w=93&h=118" border="0">
        </div>
    </div>