OK, now I’m confused myself…but if you need those widget positions added to the “blog” part of your site, it’s exactly as I mentioned above because the blog section of my theme for any website only has the bottom widgets (in the coloured background), a left and right sidebar, plus the banner option at the top. For actual pages, this isn’t a problem because you would simply select the Front Page with the Right sidebar column (or any of the others). For the blog section where you do posts, this is the index.php file I mentioned in the previous post.
In the frontpage-right-column.php file, you can bring over any of these:
These are above the main content and have the white page background. So any of these you would put in the index.php file (preferably in a child theme).
Or the bottom: