you might have more problem getting this to work with something like everyone.net who might not work with this type of system. It would not be the sginup.htlm page you call anyway but the CGI or PHP or ASP whatever it is program that processes the form when someone clicks submit. I have to say i doubt it will work. This type of thing is really only going to work if you control the scripts which for everyone.net you don't. I wanted to do it for
http://www.communityarchitect.com as well but i don't think i can (especially as they appear to have something preventing that as well).