When I go to downloads, 5.43 isn't there. It only goes up to 5.42. And APPRENTLY, when I try to login with an earlier version it won't let me, so I need 5.43, or else I won't be able to play toribash.

https://toribash.com/download.php

Just a note, the "Download latest version" is the button you were looking for.
Updated the page to have 5.43 in the list below as well.