Outlook public calendar for support staff that alerts with reminders

Hi everyone.  I am trying to set up a public calendar for a couple of support staff we have in our office.  I want this calendar to be accessible to everybody who would need this support, and want to attach this calendar to said support staff's accounts.  I have figured out how to "Favorite" the calendar so it shows up adjacent to their personal calendars, but I can't figure out how to make it buzz/alert you when a calendar event is coming up.  Does anyone know if there is a way to do this?  We are running Exchange 2007, with Office 2007 and 2010 on the support staffs' machines...

As an alternative, I also tried creating a full "Support Account" in Exchange that I simply attach to both of their normal Exchange accounts. Once I allow both of their user accounts access to this Support Account, it is easy to attach it to their respective normal accounts.  BUT, the calendar function still doesn't alert/remind them of upcoming events (new e-mails also kind of sneak in, without any mini-windows/new mail sounds coming up).

Are either/both of these possible?

Thanks for your time guys! -Dylan B.