Folder Permissions Error - Not Writable

[Graphito]

Well, I have some problems with the installation. I saw the forum topics dealing with this problem but it did not solved mine.

Unable to continue: Unable to write config file. CHMOD 777 the folders /data, /backups and their sub-folders and retry

GetSimple 3.0------------------------Latest version installed
PHP Version--------------------------5.2.13 - OK
Folder Permissions------------------Error - Not Writable
cURL Module--------------------------Installed - OK
GD Library-----------------------------Installed - OK
ZipArchive-----------------------------Not Installed - Warning
SimpleXML Module-------------------Installed - OK
Apache Mod Rewrite----------------Installed - OK

http://urldeleted/cms

I did CHMOD 777 on everything only /data /backups and both. Do I need to contact my provider? because I can do only a 777 not a 755 etc.

Already thanks