Ok I did a simple 1 - 1 Exchange 2003 Exchange 2007 migration, everything was completed a month ago. However I now have an issue with the OAB. I did move the Public Folder store over to E2007 and everything from Outlook 2007 seems to work fine.
Heres the deal, when I go to the properties of the Default Offline Address Book, I can check off the first boxes, but Web distribution & Public Folder distribution are greyed out, what did I do wrong? Also I did move OAB Generation to the new E2007 server.