If you get a permissions error, or notification that a script can't run, the first thing to do is check your permissions. Login to your CPANEL or ftp client like Smart FTP and locate the file and folder that is failing to load.
check permissions to make sure that they are NO HIGHER than 755
MySmallBizWebHosting.com runs PHP securely with PHPSuxec. Because of this you are no longer required to run some php scripts with 777 permissions.