Thank you for the response! One last question, if I may: is there a way to leave that folder out of the migration then? We don't use it, and in truth- we are getting replication warnings on it: we decommissioned one of our two Exchange 2k3 servers this past weekend and migrated all the public folders over to the remaining Exchange 2k3 server. Everything went fine except the EFORMSOrganization(409) folder, which is now giving a 1129 replication error. The final move to a pure 2k7 Exchange system will be in a week or so.
Any help would be greatly appreciated, and I also want to thank you retro-actively for all the great articles you guys put up! Especially in regards to Exchange 2007!