[SOLVED] How To Add Codes since we have no access to Single Post?

I like this Plugin called DailyTop10Posts, i use to have it on my previous theme.

But now since i cant access Single Post, does anyone know how can i still use this plug in?

Go to Admin Panel > Design > Theme Editor and click on Single Post (single.php).
#Find this line:
<?php the_time('F jS, Y') ?> //date
#Right after it, insert this line:
<br /><?php if (function_exists('todays_overall_count')) { todays_overall_count($post->ID, 'Visited', 'times', 'so far today', '0', 'show'); } ?>

HELP!!!