Anonymous tracking for certain URLs only

I am new to piwik and I am dealing with requirements that far exceed what I can do after having spent 2 days playing with piwik. There are certain pages in our web site for which we want to track visits anonymously, but I can’t figure out how best to do that.

For example, on the following setup:
-Page A is a page where we want to track visits anonymously
-Page B is a page where we are tracking individual users
-Page C is a page where we are tracking individual users

Now consider the actions below,
-User 1 visits pages A, B and C
-User 2 visits pages A and B
-User 3 visits page B

Here’s what I would like to see in Piwik’s visitor log -
-User 1 visited page B and C
-User 2 visited page B
-User 3 visited page C
-Anonymous visited page A twice

Any help or pointer on how to achieve this sort of behavior is more than welcome.
Thanks in advance!

Patrick