Arjuna X theme editor

I am using Arjuna X 1.3.9 by SRS Solutions

Question #1
I saw a thread “Can’t show Summary of Posts?” and wanted to follow Nazieb’s advice and tried to change the word “content” to “excerpt” in theme editor’s (index.php) without success.
So, I followed esmi’s advice and put the <!–more–> tag in my close to 200 posts (ahhhhhhhhh!)

I really would love to find the way to use excerpt than putting “more”code.

Question #2
I also wanted to change the words “continue reading…” and “read more” which show up in the summery pages with excerpts (thanks to “more”code).
I tried to change the both words in index.php, but neither would take.

<div class=”postContent”>
<?php the_content(‘continue reading…’, ‘Arjuna’)); ?>
</div>
<div class=”postFooter”><div class=”r”></div>
<div class=”left”>
<span class=”postCategories”><?php the_category(‘, ‘); ?></span>
<?php if ( function_exists(‘the_tags’) ): ?>
<span class=”postTags”><?php
if (get_the_tags()) the_tags(”, ‘, ‘, ”);
else print ‘<span>’.__(‘<i>none</i>’, ‘Arjuna’).'</span>’;
?></span>
<?php endif; ?>
</div>
” class=”postReadMore”><span><?php _e(‘Read more’, ‘Arjuna’); ?></span>
</div>
</div>
<?php endwhile; ?>

I want “continue reading” to be “詳細”.
I was able to change several words in (comments.php), so I don’t know why index.php won’t take any change…
I also tried (user-style.css) without success.

If anyone could help me with these issues, I am grateful.
Thank you so much.