May i know that Interorg Replication Tool (http://www.microsoft.com/downloads/details.aspx?FamilyId=E7A951D7-1559-4F8F-B400-488B0C52430E&displaylang=en) support for Exchange 2007 forest?

http://technet.microsoft.com/en-us/library/ee307369(EXCHG.80).aspx Inter-Organization Replication Tool Topic Last Modified: 2009-09-24 Released/Updated July 2009 This topic describes the Inter-Organization Replication tool, which was first released as part of Microsoft Exchange Server 5.5 Service Pack 3 (SP3), with an updated version for Microsoft Exchange 2003. The tool is also compatible with Exchange Server 2007.