Hi,
Yes, the month graph updates once per day at 0:08.
The 24, 48 and 72 hour graphs should be updating and uploading at the frequency you set in webfiles upload times (usually every 10 minutes).
All these graphs are updating ok automatcally?
http://www.meteomaspalomas.com/curr24hourgraph.gif
http://www.meteomaspalomas.com/curr48hourgraph.gif
http://www.meteomaspalomas.com/curr72hourgraph.gif
Perhaps you need to clear your browser cache if they are not updating for you.