I always wanted to include folder redirection materials on my blog especially for my reference & for others too. I have seen lot of questions related with folder redirection in various blogs/forum like what is the permission on redirected folder should be, is folder to be manually created or let folder redirection creates it automatically during first log on. Here i would say let the folder be created automatically. The other question is even administrator can’t access home folder created by folder redirection, the reason is its by design & an administrator has to be manually granted explicit rights.
Enabling the administrator to have access to redirected folders
http://support.microsoft.com/kb/288991
Automatic creation of user folders for home, roaming profile and redirected folders.
NTFS permissions for Redirected Folders
http://support.microsoft.com/kb/274443
Profile Version in XP & below is V1 where as profile Version for Vista & above is V2, so when you migrate the profile from XP to WIN7 a new profile is created even though profile still exists & other reason is windows XP & Win7 have different folder architecture for profiles like XP it stores the profile under document & settings where as in Vista & above its C:\users.
Managing Roaming User Data Deployment Guide
http://technet.microsoft.com/en-us/library/cc766489%28WS.10%29.aspx
One of the article, i personally used in the past understanding & configuring folder redirection is below by Ace Fekay, the reason is its been well documented with the supporting links. Thanks to Ace for wonderful article.
http://msmvps.com/blogs/acefekay/archive/2009/09/08/folder-redirection.aspx