How to add ActiveSync to SBS 2003?

I have a client that had been using Blackberry devices and using BIS service to get their emails.  Now a couple of the "C" Level have gone out and got Droids and want those setup.  The salesperson at the store calls me and asks for the email settings and I give him the basic info.  He cannot tell me if the Droid uses ActiveSync or not.  He says "It only asks me 3 things..."  From what I can tell the Droid is wanting ActiveSync.  It doesn't look like the tech that did their initial installation choose to enable ActiveSync.  Does the Droid require ActiveSync?  How can I easily verify that the server doesn't have ActiveSync?What is the best practice to accomplish adding it?  What ports need to be open on the Firewall?