<A target="_blank" href="http://blogs.perficient.com/portals/2010/12/08/sametime-8-5-1-deployment-checklist/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+PortalSolutionsBlog+%28Portal+Solutions+Blog%29">Jonathan Distad says the migration from "Sametime Classic" to Sametime 8.5.1</A> isn't as hard as it looks. He provides a checklist to help you plan your migration.