Modifying the thread layout.

I see some of the threads listing their oldest posts at the top. Is there a way to have the threads list posts with the newest at the top?
there are two different options which may address your issue, both in the upper right of the screen when viewing New Posts.

you can adjust your Filters, which is on a button at the top of the page.

there is also a Latest Activity button on the horizontal tool bar. depending on your display, you may need to use the right arrow and scroll in order to see it.