Re: VIN doesn't match the build or compliance date
The MY2012 model was released in 2011, so your numbers seem OK.
Mine is the same - MY2012 model built October 11 but compliance plate Jan 12.
You might have noticed that the MY2014 model was just released in the USA a few days ago on 14/1/13. Those Crazzyyy Americans!!!
As far as TSB's are concerned, it is the build date that matters.
2012 MG CRD Laredo, Off Road Adventure II, Quadra Drive II, Quadra Lift, Cooper AT3, Stupid Useless JA Recovery Hook (modified) and sand mode software upgrade on 8 April 2013, full size spare, GME TX3345, Chief Products recovery hook and bash plate