The cdromupgrade script is maintained as part of the update-manager package. dists/stable should exist as a symlink to dists/jaunty, though; this should only be a problem if you're running off a USB stick.
The cdromupgrade script is maintained as part of the update-manager package. dists/stable should exist as a symlink to dists/jaunty, though; this should only be a problem if you're running off a USB stick.