No worries Andre.
For xperf stuff we have two team blogs where you might be able to get some help.
AskPerf (blogs.technet.com/.../askperf) is our internal performance support team
NtDebugging (blogs.msdn.com/.../ntdebugging) is our internal debug team which regularly uses the tool.
As for the SSU update, I'm not 100% sure personally so I am going to find out now. I will post more once I have information.
--Joseph