If you want to use the columns like the demo – http://demo.appfinite.net/epik/columns/ you can add this code in a Text widget –
<div class="one-half first">
<p>This is an example of a WordPress post, you could edit this to put information about yourself or your site so readers know where you are coming from. You can create as many posts as you like in order to share with your readers what exactly is on your mind.</p>
</div>
<div class="one-half">
<p>This is an example of a WordPress post, you could edit this to put information about yourself or your site so readers know where you are coming from. You can create as many posts as you like in order to share with your readers what exactly is on your mind.</p>
</div><!--formatted-->