That pesky Dynamics GP 2010 R2 release snuck out early when no one was looking, well no one but Mariano. He has all the links at Microsoft Dynamics GP 2010 R2 is hot off the press
Microsoft Dynamics GP 2010 R2 is loose!
Off-Topic & MiscellaneousGP 2010
Archived post from 2011. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.