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There was a substantial upgrade to ACR between CS5 and CS6.  This included better control of tonality (which are the extra controls you are seeing).  If you want to upgrade to the new raw processor with its new controls, just click on the exclamation point just below the lower RH corner of the picture.

If you want to read all about the improvements, just Google, {photoshop cs6 ACR improvements} (...or something like that).

HTH,

Tom

PS - Hopefully, I addressed the issue that concerns you.  I was trying to type at a mile a minute before my train went into a tunnel and I lost my connection.