For those of you with a Mac (or Linux)
The source version of the EVE-Central uploader available from the main page has some issues working correctly on a Macintosh or Linux system do to bad path separators. Below is a link to grab a version of the uploader from the Git repository which contains a small patch to work around the issues. You’ll need an install of Python and wxPython (Unicode) appropriate for your system in order to use it.
EVE-Central uploader with Path fixes
Further up the Git tree is an unfinished UI refactoring effort (that is over a year old). If someone wants to take up the task of trying to complete the multiple-client uploader refactoring, they are more than welcome to.