<A target="_blank" href="http://www.curiousmitch.com/CuriousMitch/mitch2.nsf/d6plinks/MCON-8ALH2G">Mitch Cohen has posted links to the different packages for Sametime 8.5.1 FP1 </A>on Fix Central. He's also posted a link to the Technote explaining what's in the fix pack.