Need Help Modifying an Existing Theme.

You could re-create that look, but you’d need some customised code..

And a clear picture of how to handle the content in those areas. Simply put i think i’m with esmi, in saying it’s not possible, unless of course you’re capable with HTML and CSS. Be that the case i don’t think you’d have asked to begin with…..

If you can handle code ok then this a brief run down on what to do…

Create the HTML for the layout.
Create a new WP query to pull the posts that have the thumbs.. whether that be from a custom cat or something else (like i said you need an idea of how to handle the conte)…
Create a loop for the new query stripping what you do and don’t need…
Create code to grab an image for each result, whether by custom field or post attachment..
Add the code into the page you want it on.. index, cat archive, day archive… etc… etc…

It’s quite possible, and there’s a few themes about that come bundled with these kinds of functions, so you may wish to take a look at whats out there. Even if you don’t like a theme’s look, it may be worth looking at the code if it has a particular feature you like…

Mix ‘n’ Match style…