I have a W2003 forest with 2 domains: DomainA and DomainB.

DomainA is our production environment and DomainB is our test domain. I am
trying to install Exchange 2003 Ent in our test domain. We already have
Exchange Ent installed and running in our production domain.

I installed Exchange in the test domain using "install exchange 2003 on
additional severs. I am under the impression that since my forest already has
an exchange server, this would be appropriate. I used domain prep in test
domain but did not do forestprep. During installation if i try to add
exchange messaging and collaboration services,I get the following:

The component "Microsoft Exchange Messaging and Collaboration Services"
cannot be assigned the action "Install" because:
-To install the first Exchange server in a domain, or to run setup
in"/ForestPrep" mode, you must be an Exchange Full Administrator at the
organization level. you must use and account that has been granded the Full
Exchange Administrator Role on the Exchange organization using the Exchange
Administrative Delegation Wizard.
-You either do not have permissions to complete this operation or Active
Directory has not replicated all the necessary permissions for the deleted
items container. Please check that you have the necessary permissions to
modify Exchange components and that replication is complete before running
setup.

While using the ESM, I only see the Recipients and Tools containers. I do
not see Global Settings or Administrative groups.

What do i need to do to use this server?

Thanks for the help.
pepe