Excel 2007 pivot tables counting dates help needed

So I have a huge amount of data that are all projected visit dates that range over a course of future years. I want to pivot the data out so that I can relay back counts of Month/Year as needed to an individual text label. Everything I find online tells you how to pivot if you have data in a cell but not how to manipulate and work with dates in a cell instead.
Attached is my data.

I want to be able to use a pivot to tell me (for example) 'There are 68 visits occurring in January 2013 and those visits belong to site 1 (20 visits), site 21 (40 visits), and site 42 (8 visits)'. Or that it can tell me, for site 1, 20 visits occurring in January 2013 are for V2 (3), V5 (10), and V20 (7).

Any help is appreciated.

Using Excel 2007.