You can't access Documents and Settings because it doesn't exist. It's just a pointer (in this case) to the Users folder (where the profiles are kept in Vista). You can delete them if you'd like - but that'd cause problems if you ever installed a program that was looking for Documents and Settings.
From your screenshot, the Application Data, Cookies, Local Settings, NetHood, PrintHood, SendTo, StartMenu, and Templates are all Junction Points - and each points to a different location. If you'll take a look at this article it gives the "real" location that most of the Junction Points point to: http://www.svrops.com/svrops/articles/jpoints.htm
I've got no clue of what damaged your other file permissions.
My browser caused a flood of traffic, sio my IP address was banned. Hope to fix it soon. Will get back to posting as soon as Im able. - John
(my website: http://www.carrona.org/
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