There is a nice list provided here: http://www.dslreports.com/forum/r22124619-IE8-InPrivate-filter-from-adblock-plus-list
I have also written a small app for IE8 users for InPrivate that you can have a look here: http://leewhittington.deviantart.com/gallery/25099213#/d2ud0t1

Hope that helps,
Lee

There are two ways in which both InPrivate Filtering and Tracking Protection build their lists. One is an automated learning way in which the browser learns over time and builds a list by observing the 3rd party servers that users kept interacting with as they browsed the web, and once a server showed up more than a set number of times, the browser would block future connections to it. Second way is by specifying a pre-defined list yourself by clicking Import in “Advanced settings” of IE8 or in case of IE9, going to the TP List page and clicking on a list. In IE8, the first way is the default and the second is optional. In IE9, the second is the default and the first still available by going to Tools menu -> Tracking Protection.

Either way, the only difference is a name change and “Tracking Protection” is a feature MS make more prominent by marketing it and making it easier to add the list by simply clicking on it from a web page instead of importing an XML file yourself. Tracking Protection is the next incarnation of InPrivate Filtering and not a new feature. It has been renamed Tracking Protection in IE9 wherein the default behavior is to block third party domains by using pre-defined lists instead of automatically building the list based on the websites the user visited.