You should be creating a mailbox for each room. See http://www.slipstick.com/calendar/skedresource.htm

Signature
Sue Mosher, Outlook MVP
Author of Configuring Microsoft Outlook 2003
http://www.turtleflock.com/olconfig/index.htm
and Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
>I have created several conference rooms for our Exchange 2003 and I can not
> see them in the address book so others can schedule the rooms. I do have them
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>
> Thanks, Kathy