For your site to update every hour you have to set up a cronjob. This sounds complicated but i's not and if you don’t want to deal with it, just set up cron at www.webcron.org.

 To set up cron in Cpanel:

  -    From your Cpanel  Select Cronjob (under Advanced and then select Standart)
  - You have to crate a string which you have to enter in the field "Command to run"

The string should look like

php -q /home/my_project_dir/public_html/cron.php

  - Select the minutes, hours, and days  when you want your script to run to refresh the data. (see the screenshot on page 2)
  - Click on "SaveCrontab".
 

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