Everyone can read topic overview, but only registred can get into topic

[insane42]

I'm looking for a mod:

In a Subforum, everyone should be able to read the topics in the overview. But when guests click on the topic, they should get the message: "sorry, only registred can read this topic".

Is this possible with SMF itself or is there a mod?

[codenaught]

This mod I think will allow you to do what you want - http://custom.simplemachines.org/mods/index.php?mod=610.