I don't know if there is simple option you can enable in FREEFORUMS, or maybe more complicated server code/script mod is needed...
But it would be really nice if the navigation button (1/2/3/next/previous) were also available at the bottom of a page (after last post).
Currently the navigation buttons only appear at the top of forum page... so if you get to the end/bottom of a page, and more pages exist, you have to scroll all the way back to the top to navigate to the next (or previous) page.
Most forums do this automatically... I'm really surprised this forum does NOT! So yeah, hopefully there is a simple config switch you can flip on