Thank you a lot for your update !
However I might require additional information about 2003 to 2010 Cross-Forest Migrations.
Any New-MoveRequest command in the target Forest fails with the following error message "You must use the RemoteTargetDatabase parameter for remote push move requests."
Even though I follow Technet documentation : http://technet.microsoft.com/en-us/library/dd298174.aspx
I am trying to pull the Exchange 2003 Mailbox to my Exchange 2010 server. (Remote Legacy Mailbox Moves)
I would appreciate any additional link or information regarding this matter, but can't find any as nobody seems to have succeeding such a scenario yet.
Keep up the good work !