Session Issues when Cookies are Disabled

I have an issue with PHP when Cookies are not enabled on the client. I am using 4.2.x (have tried on various versions) and enable-trans-sid is ON. The problem is that the automatic url encoding that enable-trans-sid performs works great for anchor tags (links) but it does NOT WORK for POST forms. Any time a POST form is submitted the PHPSESSID is lost. When viewing the source of pages on a PHP site that uses sessions all the of the anchor tags correctly have the GET variable PHPSESSID which is populated. After submitting a POST form this value is no longer on the URL at all, gonzo. Surely someone else has run into this and more than likely its just a usage or configuration problem that relates to my lack of understanding. Any help is greatly appreciated. -- charlie collins screaming-penguin.com 'source does matter'