Thank you for your idea. It didn't quite work out for me but it got me on the right track. For anyone else that may be looking for a solution here's what i did:

<?php if ($page['photos']): ?>
<?php $uploadCount = 0; ?>
<?php foreach ($page['photos'] as $upload): ?>
<?php if (++$uploadCount < 3) { continue; } ?>
        
<div class="thumbnail">
<!-- Image display code -->
</div>
                
<?php endforeach ?>
<?php endif ?>

<?php if ($page['photos']): ?>
    <?php $imageCount = 0 // Initialize counter ?>
    <?php foreach ($page['photos'] as $upload): ?>
      <?php $imageCount ++ // Increment the counter ?>
      <?php if($imageCount < 3):continue // slip first 2 array elements ?>
        <div class="thumbnail">      
          <!-- Image display code -->
        </div>      
    <?php endforeach ?>
<?php endif ?>

So instead of the code below which shows all uploads I would like to skip uploads 1 and 2 and begin with upload 3:

<?php if ($page['photos']): ?>

<?php foreach ($page['photos'] as $upload): ?>

<div class="thumbnail">
<img src="<?php echo $upload['thumbUrlPath2'] ?>" width="100%" title="<?php echo htmlspecialchars($upload['info1']) ?>" alt="<?php echo htmlspecialchars($upload['info3']) ?>" /><?php if ($upload['info1']): ?>

<div class="caption"><?php echo htmlspecialchars($upload['info2']) ?></div>
<?php endif ?>

thanks