Yes. If you scroll down on your forum page, there is a menu that shows you how to change the order of the threads you want to look at. I'll come back with screenshots illustrating this.

On edit:
Go to the thread you want to look at, and scroll all the way down to the bottom of the page.
You should see "Thread Display Options" on the left part of the boxes, the second box.
You should see the options marked "0 Ascending Order 0Descending order. Pick the one you want and them click on "Show threads", which is the button on the right side of the same line/box.