follow-up scripts

Morning.

I’ld like to alter the script that makes a reminder in Reminder.app. In the included script one can not define exactly a date and time when the reminder should occur. But that is, what I need. Is it possible to alter the script in that way to have an input mask to define for example 10/03/2013@14/30 if I want to be reminded at October 3, 2013 at 2.30 PM?

Kind regards, Friedrich