Firstly, at the link below you can download a updated softcopy of the manual for free.http://www.retrevo.com/s/Kodak-LS443-Digital-Cameras-review-manual/id/200dj378/t/1-2/
As for the error code you are getting, "error 45" is a lens related problem of LS443.
If the lens is not stuck, you may try to download the firmware from the Kodak site and update the one in your camera.
As the lens is already stuck, there is no choice except to send the camera back to Kodak for servicing.
Hope this can steer you in the right direction.