Question : Moving mailboxes from SBS 2003 to Exchange 2007

Hello,

I am having some issues moving mailboxes from an existing SBS to a new windows server 2003 machine running exchange 2007.  I am trying to move a mail box using the following command (items in <> represent local names):
Move-Mailbox -TargetDatabase "\First Storage Group\Mailbox Database" -Identity -SourceForestGlobalCatalog -SourceForestCredential $SourceCredential -TargetForestCredential $TargetCredential

Credentials have been set using Get-Credential and are using the administrator account.

The error I recieve is "An Active Directory error 0x51 occurred when trying to check server '' suitability: 'The LDAP server is unavailable.'".

How might I go about correcting this error?  Is there an easier way to move mailboxes to a new exchange server in a new domain?  

Thanks.

-Dan

Answer : Moving mailboxes from SBS 2003 to Exchange 2007

So this is a new DOMAIN? Not a server in the existing domain?
If so then you cannot move the mailboxes in the way that you wish. You will have export the mailboxes using exmerge and then import the content through Outlook, as there is no equivilent of exmerge for Exchange 2007 at this time.

Simon.