Looks like some people already requested:
http://www.rapidleech.com/topic/7828-req-fileserve-upload-plugin/
http://www.rapidleech.com/topic/7848-upload-script-supporting-fileserve/
http://www.rapidleech.com/topic/7828-req-fileserve-upload-plugin/
http://www.rapidleech.com/topic/7848-upload-script-supporting-fileserve/