The changes to the SF424 form set have been posted to the Federal Register. You can review them here:

SF424 R&R — http://edocket.access.gpo.gov/2008/E8-10797.htm

SF424 Mandatory — http://edocket.access.gpo.gov/2008/E8-10796.htm

SF424 A — http://edocket.access.gpo.gov/2008/E8-10798.htm

SF424 B — http://edocket.access.gpo.gov/2008/E8-10795.htm

SF424 C –http://edocket.access.gpo.gov/2008/E8-10794.htm

SF424 D — http://edocket.access.gpo.gov/2008/E8-10793.htm

(Thanks for Laura Mealiea of Compusearch for posting these to the Grants.gov mailing list!)