I committed the file uploads modules to SVN. The upload.php module needs a bit of work in the security area. Right now it just checks for a case id and an owner id, not for login.
I think you need to set up a user as a "Team Lead". I think only team leads (And admins) can create new cases. Regular users can only submit reports for existing cases.
There have been a couple features I've added to this package (Site notices, and File uploads for cases).
What would be the best method of submitting these? Using the SVN or patches?.
You need to add in ./login.php where the session data is to be saved for your host here:
AFTER
session_set_cookie_params( $cookie_timeout );
INSERT
session_save_path("{path to where sessions are saved}");
session_start();
This should resolve the issue.