Errror creating an Exchange 2007 policy and moving a mailbox

First, I am working in a VM test environment so its hackable. I have an Exchange 2003 server and one Exchange 2007 Cluster with a few clients. I was playing around and upgraded the 2003 Address Lists to 2007 based on an article I read. Now, it seems I cannot create an Exchange 2007 EAP. When I try, I get the message below. If I delete any existing 2003 EAP's I have, everything works. I have 3 EAP's. The Default one that Exchange 2003 creates when you install it, and two Exchange 2003 policies I created.
Is there any way to downgrade an Address List after you have upgraded it?

I get this error trying to create an Exchange 2007 EAP.

New Exchange 2007 Mailbox Policy
Failed
Error:
Unable to validate the filter: 'The Exchange server address list service failed to respond. This could be because of an address list or email address policy configuration error.'

The Exchange server address list service failed to respond. This could be because of an address list or email address policy configuration error.

Exchange Management Shell command attempted:
new-EmailAddressPolicy -Name 'Exchange 2007 Mailbox Policy' -IncludedRecipients 'MailboxUsers' -ConditionalCustomAttribute14 'testdomain' -Priority 'Lowest' -EnabledEmailAddressTemplates 'SMTP:%g.%s@testdomain.org'
Elapsed Time: 00:00:01
Apply Exchange 2007 Mailbox Policy
Cancelled

I get this error trying to move an Exchange 2003 mailbox to the 2007 server:

Test Migrate
Failed

Error:
The address list service on the server 'EXCHCLUSTER.child.corpit.com' is not running. The Exchange server address list service failed to respond. This could be because of an address list or email address policy configuration error.

The Exchange server address list service failed to respond. This could be because of an address list or email address policy configuration error.

Exchange Management Shell command attempted:
'child.corpit.com/Users/Test Migrate' | move-mailbox -TargetDatabase 'EXCHCLUSTER\Storage Group 2\Mailbox Database 2'

Elapsed Time: 00:00:00
osiexchangeAsked:
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Exchange_GeekCommented:
On your Exchange 2007 server, do you have SA resource / service in online / running state ?
What are those events which appear in application logs ??
What does Exchange Best Practice Report state ?

Try the following command

move-mailbox -identity user alias -TargetDatabase "EXCHCLUSTER\Storage Group 2\Mailbox Database 2"

Mailbox database 2 - is it in mounted state (basic question)
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osiexchangeAuthor Commented:
I will check those things. Thanks. I really believe it has something to do with the fact that I upgraded the Address Lists to Exchange 2007. Thats why I asked about reversing it. I will try what you suggested and let you know.
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Exchange_GeekCommented:
Well, the fact about reversal does not exist - once upgraded its done for good :)
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osiexchangeAuthor Commented:
DOH! Ok thanks. Glad I did  not do it in my production environment.
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osiexchangeAuthor Commented:
Well everything works now, and I am not sure what changed. I thought it was because I had the Exchange 2007 policy as Priority 1. I was then able to move a mailbox and create an Exchange 2007 EAP. I then reshuffled the order and made the Exchange 2003 EAP Priority 1, and it still worked. Go figure. I guess the moral of the story is wait until your Exchange 2003 environment is completely migrated to 2007 before upgrading your Address List because I feel that caused the problem. Not sure what your thoughts are on that or what experience you have with that.
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Exchange_GeekCommented:
To be honest, with all those hundreds of migrations come across with EAP, i have had issues pertaining to
  • AD replication
  • Permissions
  • SA service
  • database issue.
So, I gave you basic checks to do - and kept advanced troubleshooting for future :)
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