I come to FR from startpage.com which is not supposed to track ISP address.
You are correct that startpage.com does not track your IP address, and from what I can see by casually looking at its communications, it isn't overtly using google-analytics.com in the manner that Free Republic does.
However, simply using startpage.com to get to Free Republic isn't going to have any tangible effect on the tracking that google-analytics.com is doing. All it does mean is that google-analytics.com won't have access to your visits to the startpage.com website.
You can manually block the google-analytics.com tracking by adding the following line to your hosts file:
127.0.0.1 www.google-analytics.com
This will block all DNS-resolution based communications with www.google-analytics.com. (If they were to start using raw IP numbers instead of the DNS name www.google-analytics.com or if they were to change DNS names, then this line wouldn't be of any use.)
There's a pretty good collection of undesirable DNS names at the MVPS site. It seems to be kept up on a reasonably timely basis; the date in the latest version indicates it was updated on March 30th.
Tunnelling to a different ip and blocking tracking cookies are two different things. Your ISP can’t track you, but servers on the other end still can.