how to hide posts from guests but not the categories

[Dennissmith]

hi guys
im tryin to stop guest replyin on my boards but when i try to fix this to board panel if i dont click guests they cant see forum topics all im lookin for is just to hide the replies from topics n they cant post
thx i did install 1 mod lasnite hidereplies for smf2.0 rc3 wich im usin now but doesnt work

[flapjack]

what about this one: http://custom.simplemachines.org/mods/index.php?mod=1332