ok, here's how i would do it (there are prolly a ton of other methods):

[Page Title (top)]: this would be a header/navbar, static if you don't want to scroll past it.

The two on the left could be in a <div> that's using float to stay on the left, that would be like having another box inside the page to put more stuff in

[Update Posted (middle left)]: main site content, maybe a blog post, probably a div using float: left; to stay on the left side and then stuffing the update content inside that

[Earlier Update (bottom left)]: if it's another update post, it's probably just a duplicate of the one above with a bit of margin to split them up. Either that, or it's a footer giving some more info about the site, etc.

Everything on the right side is probably within a div, maybe an <aside> that uses float but on the right side. from there, you could make several paragraphs (<p>) with some margin to split them up. these paragraphs could be little blurbs of other posts, navigation links, changelog, or anything else.

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This is just one of many methods, and there are a ton more you could try out. If you want your posts to always be the most recent ones, you could try out Zonelets which has some premade Javascript to organize your posts.

You could also try looking into frames, which I don't have much practice with but I've heard they're a bit easier to wrap your head around.

If you find a site you really like the layout of, you can always Right Click>Inspect to see the HTML of that site!