How to Get The Comments Embedded Below Post

Login to blogger->settings->comments
then set to popup window

Next. Layout->edit html

and find this line of code

<p class='comment-footer'>
<a expr:href='data:post.addCommentUrl' expr:onclick='data:post.addCommentOnclick'>
<data:postCommentMsg/></a>
</p>

and change it to this

<p class='comment-footer'>
<b:if cond='data:post.embedCommentForm'>
<b:include data='post' name='comment-form'/>
<b:else/><a expr:href='data:post.addCommentUrl' expr:onclick='data:post.addCommentOnclick'>
<data:postCommentMsg/></a></b:if>
</p>

then SAVE

after that go to settings->comments and choose embed below post

THATS ALL