2.Click on "Expand Widget Templates"
3.Scroll down to where you see below code:
<div class='post-header-line-1'/>
4.Now Copy your DZone Submit Button code and paste it just below the above code.
NOTE: If you can't find <div class='post-header-line-1'/> in your template paste your DZone Submit Button code just before <data:post.body/> .
DZone Submit Buttons Codes:
CODE 1:
<div style='float:right; margin-left:10px;'> <script type="text/javascript"> var dzone_url = '<data:post.url/>'; </script> <script type="text/javascript"> var dzone_title = '<data:post.title/>'; </script> <script type="text/javascript"> var dzone_style = '1'; </script> <script language="javascript" src="http://widgets.dzone.com/widgets/zoneit.js"> </script> </div>
Result:

CODE 2:
<div style='float:right; margin-left:10px;'> <script type="text/javascript"> var dzone_url = '<data:post.url/>'; </script> <script type="text/javascript"> var dzone_title = '<data:post.title/>'; </script> <script type="text/javascript"> var dzone_style = '2'; </script> <script language="javascript" src="http://widgets.dzone.com/widgets/zoneit.js"> </script> </div>
Result:

You are done.