Firstly Hi, been playing with PunBB for the last few days and loving it so far.
Anyway, I've installed this mod 1.0.4 with Last Topic Link but it wasn't showing the subforum posts on the index page, the post counts went up correctly but Last Post details where incorrect. So in good fashion I hit the source code to figure out why, quite a simple fix so I'm not sure if I missed this somehow after trying the install twice.
Basically, in index.php the routine that checks for the last post still uses $cur_forum['last_post'] which based off the last query run does not include any sub forums, this needs to be changed to $l_post which is setup through some for loops previous.
So change the line...
if ($cur_forum['last_post'] != '')
if ($l_post != '')
It around about line 162 in index.php
This should now display the last post details correctly taking into account sub forums.
Again appologies if this is something I've overlooked while installing, but if it helps anyone else with the problem then thats the main thing I guess. Now to figure out why Modern BBCode doesn't paste the smilie code when you use the 'more...' popup window.