Adjusting content of blocks created by jquery (?)

In my most current theme I wanted to display my blogpost in 3 colums, as blocks, so I found this code somewhere in this forum

<table cellpadding="0" cellspacing="20" border="0">
	<?php $col = 0; $cols_per_row = 2; while (have_posts()) : the_post();   if($col == 0) echo '<tr>';   ?>
		<td class="column'<?php echo $col; ?>" style="vertical-align: top">
			<div class="postblock" id="post-'<?php the_ID(); ?>'">
				<a href="<?php the_permalink(); ?>" rel="bookmark" title="<?php the_title(); ?>"><?php the_post_thumbnail( array(280, 280) ); ?></a>
				<div class="postheader" style="margin-top: 15px; height: 25px !important; overflow: hidden; ">
					<h2 class="postindex"><a href="<?php the_permalink(); ?>" rel="bookmark" title="<?php the_title(); ?>"><?php the_title(); ?></a></h2>
				</div>
				<?php the_content('...'); ?>
			</div>
		<td>
	<?php   if($col++ >= $cols_per_row){ 	$col = 0; 	echo '</tr>';   } endwhile; ?>
</table>

It does exactly what I wanted… except that I want to be able to adjust the content of some of the blocks, for example to put in my instagramfeed or Google Ads. Help? What do I need to change? You can see what I mean (atm at least, might change my mind) on dailylifestyle.nl