I can't transfer photos from this camera. It will not show up a drive. Shotwell does not acknowledge it's existence. lsusb reports the camera as "Primax Elecrtonics". Help?
Shotwell's digital camera support comes from GPhoto. A list of supported cameras is here:
Since your camera isn't on the list, it may not be supported; though since there's a couple similar model numbers mentioned I'd still think it ought to work.
You might try asking on the GPhoto mailing list if there's any known issues with that camera.