Seeing boards but not messages inside, how to?

[Patriiick]

Hi, I would like to create a group whose members can see all my boards names but not any messages inside, the purpose is to show my guests what they could have access to once registered. I looked at groups, tried to create a new group for that but did not succeed in setting permissions to see board but not messages inside.
Do you think this is possible, and if not, would a plugin achieve this?

Thanks

[Paul_Pauline]

Have a look at this mod  http://custom.simplemachines.org/mods/index.php?mod=1695

OR

http://custom.simplemachines.org/mods/index.php?mod=2380

[Patriiick]

Thanks a lot, this could answer my question, I finaly installed "Hide First Topic".

[Patriiick]

"Hide First Topic" is not working fine, it actualy hides posts for registered members and should do that only for guests. I uninstalled it.

[Kindred]

http://custom.simplemachines.org/mods/index.php?mod=2309
http://custom.simplemachines.org/mods/index.php?mod=610