I can’t join ACM

So, as a part time postgraduate student I decided it was time to join the ACM. I’ve been trying all of this week, and I still get this error message on the sign up form:

    Error Diagnostic Information
    The QUERY attribute of the tag does not specify the name of an available query
    The error occurred while processing an element with a general identifier of (CFSELECT), occupying
    document position (871:10) to (871:90) in the template file
    Date/Time: 12/01/04 17:46:13
    Browser: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.3) Gecko/20041105 Firefox/1.0RC1 (Debian
    package 0.99+1.0RC1-4)
    Remote Address:
    Query String: form_type=Student/

I tried emailing the address in the error message, with no luck. Does anyone out there know someone from the ACM who can get this fixed so I can join?