Well,
this could be done easily by making an html page in the root, this page would make statements that back up your purpose, then send them to another html page outside of xcart that is linked to an ftp upload file where you have set the permissions for them to do just this.
tham you go into the server to that file and collect and organize items over to the xcart...
Isn't this what you want?
Use xcart to make your case for submissions on a simple add on htme file based in root, then send them to another html file outside of xcart with the ftp usage...
