Forms from a web site

I have Acrobat 8 Professional for MAC. I am running OS 10.4.6. I previously built a form and distributed by email. Everyone was able to fill it out, save it to their computer and send it back to me where I compiled the data in the data-set. Interesting to me was that they did not have to click the submit button on my form. If they just saved it and attached it to an email to me, I was still able to pull the data into the data-set. What I want to do it have the form on my web site where they can download it, fill it out, save it to their computer, then just attach it to an email to me. I would prefer that they not use the submit button because the choices (email application/internet email) confuses many of them. But I definitely want to be able to pull all the data into Acrobat (like the data-set does) so I do not have hand-enter it. So I built a form, enabled user rights, did the distribute wizard to distribute later. I got the two files (pub and data-set). I uploaded the pub file to my website using Adobe GoLive's FTP. When I downloaded the form and opened it in Reader, it said I could fill it out and print it but would not be able to save it. What is it that I am doing wrong? Is what I am trying to do possible?