I probably missed it somewhere but is there a way of inverting the posting order within threads so the last post comes up on top?

Not that I know about.

But, welcome to the Den either way.

On long threads you'll find numbers 1 thru how many pages, you could select the last page, which would be the most current.

Here's a long thread, page 10 is today

I figured that out, just looking for convenience.