[Zope] Cookie Crumbler and querystrings

Hi, I am building a site where users must log in before being allowed access. For this I use Cookie Crumbler, but I have a problem with it: There are some URLs with querystring information, e.g. http://www.mysite.org/opportunity/cancel/?opp_id=29 The first time they try this link, the Cookie Crumbler redirects them back to the login page for username and password. But after they have logged in, they get taken back to http://www.mysite.org/opportunity/cancel/index_html without the querystring, which is necessary for the index_html method to function. Is there a way to avoid this problem, and to maintain querystring through the CC login process? TIA Ben Avery YouthNet UK ben@thesite.org