In my Web page class, I teach the students how to use Dreamweaver. At this time, my district does not have a server to publish student webpages. I have tried searching the Web for a free Web host for Education which allows you to upload Web sites created in Dreamweaver. If you know of anything that may work please let me know.
I agree with Chris; set up your own server. You can do it with Linux, Apple or Windows. Your IT department can set it up as a subdomain of your schools domain. It is not very difficult. I run an internal FreeBSD server on our schools network, that way I don't have to worry about publishing student work and files (in our district we need forms and permission from parents and even then it is limiting), this way they can change their sites as often as they wish and view them live from within the school. Good luck, have fun.