Google Analytics is not that hard
A brief description of tracking website traffic on your Plone website via Google Analytics
This outlines the steps necessary to set up Google Analytics for tracking visitors to a Plone 3 website. The last two steps are somewhat more involved for older versions of Plone.
Step 1) Visit http://analytics.google.com, create an account if you don't already have one, and select "Add Website Profile" from the main page.
Step 2) Make sure that "Add a Profile for a new domain" is selected, and enter the address of your (launched!) website where requested (should be something like www.myorg.org), and then click "Finish"
3) Select the script code from the next window (make sure you have all of it) and go to Edit->copy in your browser menu.
4) Log in to your Plone website, and go to "site setup" -> "site settings" (or http://myorg.org/@@site-controlpanel, replacing "myorg.org" with your organization's address). Paste the copied script into the text area labelled "Javascript for web statistics support"; then click "save".
