<A target="_blank" href="http://andyyiu.com/2011/05/09/do-you-really-have-sametime-8-5-1-fp1-applied/">Andy Yiu says there is a critical step missing from the readme file for Sametime 8.5.1 FP1</A>. It seem the changes are not committed to the environment unless you follow some additional steps. Andy has documented the fix.