help it doesn;t work!!!!!!!!!

This is what it shows............. but the part i need to do is this ((((((art off by uploading all the files needed.

* The entire /arcade folder to your forum's root directory
* The files in the /admincp folder to your forum's /admincp folder
* The files in /includes/xml folder to your forum's /includes/xml folder
* arcade.php to your fourm's root folder
Now CHMOD the /arcade directory and all its subfolders to 0777
)))))))))))) <---i dont know how to do that i dont know where to start with that.....i did everything else tho
my site is http://www.warez-ds.pspds.net