Here is an hack how to show post title in any desired page of an blog.
Find :
<b:include data='post' name='post'/>
Replace with :
<b:if cond='data:blog.homepageUrl
!= data:blog.url'>
<b:if cond='data:blog.pageType != "item"'>
<h3 class='post-title'><a expr:href='data:post.url'><data:post.title/></a></h3>
<b:else/>
<b:include data='post' name='post'/>
</b:if>
<b:else/>
<b:include data='post' name='post'/>
</b:if>
to show only post title in blogger home page too.
Find :
<p><data:post.body/></p>
Replace with :
<b:if cond='data:blog.pageType == "item"'>
<p><data:post.body/></p>
</b:if>
<p><data:post.body/></p>
</b:if>
Post titles only in archieve pages :
<b:if cond='data:blog.pageType == "index"'>
<p><data:post.body/></p>
</b:if>
<p><data:post.body/></p>
</b:if>