OS X: Windows 7 partition not mounted

Hi everyone,
I had previously dual booted my macbook with OS X and WinXP, i was able to view the WinXP partition through OS X on my desktop. I got my hands on Windows 7(Final Release) and now my macbook is dual booting OS X and Win7.
I cannot figure out why the Win7 partition is not mounting in OS X. I have research some possibilities as to why and how to mount it but nothing has worked.
I have tried to mount it using DISK UTILITY but I keep getting an error. I also tried using some command lines through TERMINAL but that did not work either.
If someone could please help me with understanding why I am not able to mount the Win7 partition in OS X, that would be very helpful.
Thank you for your time and support in advance,
LJ

Boot Camp forum is here:
http://discussions.apple.com/category.jspa?categoryID=237

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ADDENDUM: I've tried to move a file from desktop to an unlocked folder in BillGates and System did not copy them. "The item could not be moved because "BillGates" cannot be modified" !!!!!!!!
Message was edited by: Giangiacomo Castelfranchi1

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