Not having the Mac version, all I can do is look at the manual.
Question 1 - You're right, it looks like there's no window named Analysis. I think he means the "Search Information" window. (You might have to tick the Engine tab inside the Search Information window, I'm not sure.) Oddly enough, in the Windows version it's called the "Engine" window.
Question 2 - I think this is very simple. With a game already loaded, just click on the "Mode" menu, then select "Analyze Game...". Another box should pop up, and you'll have to tell it how long to analyze each move, how many moves to analyze, etc. I don't think it's any harder than that.
I sent this to Shredder Support several days ago and haven't received a response so maybe someone here can help.