Can i hide topic's (posts) content from guests?
Yes you can do this by adjusting the boards permissions
Admin > Boards > Modify > Membergroups able to view
If you want to hide EVERYTHING go to:
Admin > Features and Options > Options > Allow guests to browse the forum
See:
Permissions (http://docs.simplemachines.org/index.php?board=60.0;sort=subject)
Hello Fabiolas, have you managed to apply any of the above solutions, or do you still need more assistance?