Usually this really happens to every blogger who has new template from Non-Blogger made, you can't place the ad (including Google Adsense) anymore or you want to place your ad below the title of the post, it is very strategic where your ad must be seen by the visitor. To solve it, i recommend you to follow these steps below.
Go to 'Layout' and move tab to 'Edit HTML'. Don't forget to mark 'Expand Widget Templates'
Find the code below here:
<div class='post-header-line-1'/>
</div>
<div class='post-body'>
<p><data:post.body/></p>
<div style='clear: both;'/> <!-- clear for photos floats -->
</div>
If you can't find that, try to find
<div class='post-body'>
<p><data:post.body/></p>
<div style='clear: both;'/> <!-- clear for photos floats -->
</div>
Still can't find one of them? Just try to find code that similiar to the code above. For example, try to just find <div class='post-body'> or 'post-body' (with ' sign)
Then, paste the AdSense code below it, so those code will be like this.
<div class='post-header-line-1'/>
AdSense Code
</div>
<div class='post-body'>
<p><data:post.body/></p>
<div style='clear: both;'/> <!-- clear for photos floats -->
</div>
Then enjoy, if you need further tutorial, just comment us below here, thank's.