IE, P3P, IFrame and blocked cookies (works until page host page has personal information requested)

Question

My company has a little widget that plugs into shopping carts. We are running into a problem where setting cookies in IE7 is not working. This is happening because we are

Answer 1

The cookie should have expires=Fri, 19-Dec-14 18:00:40 GMT and not max-age.

This is controlled in Apache mod_usertrack by the config CookieStyle=Netscape