P900 reschedule alarms

Hi,

I'm from Germany and I'm a newbie to the SE P900. Before I used a Palm
V for years. But as there is no Palm OS Smartphone available in
Germany that fits my needs, I changed to the Symbian P900.

Now that I have it I'm frustrated about one special think.
I couldn't find a software yet, that allows to reschedule an alarm.

That means if an alarm pops up, I do only have three choices: "OK",
"quiet" or "remember again" (translated from German, maybe the english
choices sound different).
I miss the choice of saying "remember again in... (1 hour, 5 hours, 3
days, etc.)

This was no standard function in Palm OS, but there was an Application
which provided it (datebk).

Is there really no application available that provides this feature?
Or am I to stupid to use google?

Thanx in advance

Regards

Ronan