How to create resources in Exchange 2003

I’m just learning how to administer and deploy MS Exchange 2003 but I’m pretty much knowledgeable on WIN2K and 2003 administration and Active Directory. I need to know the step by step creation of resources in MS Exchange for purposes of scheduling and managing conference rooms and other resources.

I was told to create a user in Active Directory Users and Computers and mark the Create an Exchange Mailbox. But I still can’t complete the process and be able to make it available in my Address List.