MacWebCam 2.7 can be used to send images to a remote internet directory using PPP and any scriptable FTP application.
To use FTP, you need to set up a Post Process AppleScript to send the most recent image (and optionally others) to the remote server. The archive includes sample scripts templates that demonstrate how to FTP using Fetch and Anarchie. These sample scripts must be modified to grab the right image file and send it to the proper location.