When we check the code on our side, we get the digest to show two latest posts and each item is placed in different row. If we got you right and you see both items in one row, could you please send us the link to your site to figure out what the problem can be (you can use FI contact form not to reveal the data).

I used the 'Striking' design with two edits - I've changed the %DAY% tag to %DAY2% and moved it so that it shows date before month (i.e. UK custom) so the entire html code for the per item template is as follows:
<tr><td valign="middle" style="font-size: 24px; color: #aaa;">%DAY2% %MONTHSHORT% </td><td><b>%TITLE,70%</b><ifdescription>
<small>%DESCRIPTIONPLAIN,250%</small></ifdescription></td></tr>

The <table> and </table> tags are in the header and footer respectively as in the template.

My issue is that for some reason when it displays the last two posts it displays the posts in a single row rather than following the html script.