Sign Guestbook problem

[usahasiber]

Script URL: http://www.e-webniaga.com/gb/gbook.php
Version of script:
Hosting company:
URL of phpinfo.php:
URL of session_test.php:
What terms did you try when SEARCHING for a solution:
CHMOD
Write your message below:

Try to sign guestbook but message appear below:
Can't open entries file for reading! CHMOD this file to 666 (rw-rw-rw) and make sure your host allows PHP scripts to read from local files!

[Klemen]

There are 2 sticky posts about this problem in GBook forum and a lot of other ones, did you read ANY of them??