I am setting up a URL...So there is nothing to show you. Here is the instructions
http://wiki.mybb.com/index.php/Installing" and they say
MyBB requires certain files and directories to have different permissions in order for it to write to the files. However, the permissions required also depend on how your server is setup. Folders usually should be set to 777. Setting files to 777 will provide read/write/execute access to any user of the server, which may be a security risk, but provides the least troublesome install and operation. You can usually give 666 access to files.
If you are using a GUI program (where you do not have to use commands to perform actions, such as SmartFTP or Filezilla, then usually, you should be able to right click on the file you wish to CHMOD and select something such as "Properties" or "CHMOD." In SmartFTP 2.0, the option is called "Properties / CHMOD." When you have found the right window, most likely there will be checkboxes letting you choose the Permission.
If your server is run as a CGI module, the user that is used is usually the root or main user. As such, permission for 'group' and 'other's can be set to a lower value if you need added security.
Required Changes
Note: You need to rename the config.default.php to config.php first!
The files and folders that require CHMODing for MyBB to install are
filename CHMOD Permission
--------------------------------------------
./inc/config.php >> 666
./inc/settings.php >> 666
./cache/ >> 777
./cache/themes/ >> 777
./uploads/ >> 777
./uploads/avatars/ >> 777
Optional Changes
The files and folders that may be CHMOD for extra functionality are
filename CHMOD Permission
--------------------------------------------
./admin/backups/ >> 777
./inc/languages/english/*all files* >> 666
./inc/languages/english/admin/*all files* >> 666
MY DOWNLOAD DOESN'T HAVE THESE FILES. IF I COULD FIND THE FILES, I WOULD CHANGE THE POTOCAL