Many apologies for your patience Buckerine (and others affected by this). This thing has been driving me crazy as well. Part of it was that I have RoboForm installed and it automatically logs me into any site that I need to be logged into.
Ok, I figured out that the cookie was refusing to write the autologin part to itself for some reason. I’ve completely redone the cookie and now see it adding the autologin part.
So, you’ll probably want to delete the cookie from this site in your internet cache and then re-login again. I’ve tested it on a clean install of XP/IE6 and it seems to be working. Let me know what your results are. Thanks.