Samsung Moment : Better Alarm Clock - Choice To Add A More Quieter Sound

I've used the default alarm clock that comes stock with the phone. Since I only need the alarm clock for weekday reminders, I'd prefer that the pone just vibrates or allows me to choose a more soothing "alarm" tone.

The only tones available for this alarm clock are extremely annoying and loud "alarms" that are not suitable in the classroom. (No, I am not a college student, but rather a principal at a private school.)

There are many ways to make the stock alarm clock work, but I can't find any of these settings.

I'd like to change the stock alarm clock program to simply vibrate with no alarm noise.
I'd like the choice to add a more quieter alarm sound, or lower the sound of the alarm ringer.
I'd like to change the functions of the buttons on the side of the phone--default settings are to snooze the alarm I guess? By the time I get the phone out of my pocket, one of the side keys are pressed, dooming to another annoying sound in exactly 10 minutes.