How to move exchange 2007 database from power shell
Get-Mailbox –Database "Exchange2003SRV\Storage Group Name\Mailbox Store name| Move-Mailbox –TargetDatabase "Exchange2007SRV\StorageGroupName\MailboxStore Name"
Get-Mailbox –Database "Exchange2003SRV\Storage Group Name\Mailbox Store name| Move-Mailbox –TargetDatabase "Exchange2007SRV\StorageGroupName\MailboxStore Name"