I don't know if this will help, because I don't know if it can be
appliedto Exchange 2000 environments... but, there is an event sink
available from Microsoft that is listed for Exchange 2003 that does
what you want (and many other useful tasks) for resource accounts.

Specifically, the main goodies are:
- removes reminder settings (blanks the checkbox as it were),
- will scan the resource account's inbox for appointments that were
sent without actually designating the resource as a "resource-->" when
creating the appointment and, if the time sot is available, do the
booking.  In this scenario, both a success and a failure to process
the appointment receive a notification (e-mail) similar to the case
where the resource was properly added as a "resource-->".
- Can be configured to delete anything in the inbox that isn't an
appointment request; thereby keeping the mailbox from collecting
"garbage".  The only shortcoming here is that unless you log into the
account the Deleted Items folder does not get auto-cleaned/dumped, so
although the messages deleted aren't in the Inbox, they still are part
of the mailbox on the Exchange server.

The name of this jewl is the "AutoAccept Agent" and can be found here
(again this is for Exchange 2003, so if you have Exchange 2000, you
might to do further searching to see if a similar sink exists):

http://www.microsoft.com/downloads/details.aspx?FamilyId=3D0884E6-C603-491D-BF57
-ACF03E046BFE&displaylang=en

----
Rick.