1-3. I highly believe that the dataset wouldn't be available as such load testing is done just a guide, but not a rule.
4. No additional settings need to be turned on in Tableau Sever.
The workload that was used for this testing includes customer-provided "private" vizzes and data - therefore it is not available to the public.
I'm also not really sure you want to invest very much time trying to reproduce what you see in the v9 whitepaper (since v10 is the current version of Tableau Server). Applying v9 guidance to the v10 product won't do you very much good.
If you can provide a little bit more context about WHY you're asking the questions you're asking, the community may be able to give you some additional useful information.
Let us know!
Is there already a paper available for Tableau Server 10 scalability?
Not yet. Soon, I've been told