When i installed SMF and TP i did it in a directory called Forum, how can i modify it's name? when i change it, obviously, the community doesn't work perfectly, so, which line in which file have i to modify in order to be able to change the name of my main directory?

Go to http://www.simplemachines.org/download/?tools and download repair_settings.php. Upload it to your new directory. Run it by entering http://www.yoursite.com/Forum/repair_settings.php. Check each of the values and change those that need to be changed.

thanks master

LOL!!! Glad I could help!! 

(I just had to run it myself a couple of days ago.)