I am trying to provision linked mailboxes in a resource domain but as of right now they are just created as regular user mailboxes. Are there some attributes that I have to flow in order for these mailboxes to be created as linked.Ray Skweres

Carol has a nice writeup about this: http://www.wapshere.com/missmiis/managing-exchange-200020032007-with-ilm-2007 Check the section for "Resource Forest". It's written for ILM, but I think the same principle still holds for FIM 2010. I think it can be easilly replaced with declarative provisioning (from the FIM portal), but I guess the permissions will still have to be set using custom code/scripting.http://setspn.blogspot.com