Curse offers an API to automate your upload. While there is no support for it (at least I failed to get some and even killed the packager when I tried to understand it on my own) its fairly "easy" to use.
http://www.curseforge.com/wiki/proje...ough-a-script/
I have my svn here and run a php-script on my webserver to pull from wowi-svn, package and upload.