The august update has been re released (KB2975719). It looks like you should uninstall the earlier one, if you see it in your list, otherwise some minor problems have been reported. All went fine for me on a couple of laptops and a stationary it is listed as "optional" so it is your choice..
They brought this back in grand style. The graphics on my "Vista Laptop" are excellent with this game:D. Game costs 32.00 dollars:( Pre-Orders are open, it releases June 12, 2009
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Microsoft has released a Link Removed due to 404 Error for Windows XP. This is actually a re-release of this update, because the original version did not fully address the issue on XP.