I'm thinking Ubuntu replaced f-spot with shotwell quite some years ago. Seems Lubunutu don't include it in their base build if this (
https://wiki.ubuntu.com/Lubuntu/Applications) is to be believed.
I imagine you can install it yourself, then import your f-spot photos and any tags. It should also recognise your camera.
For help with your other issues, we need proper descriptions of what you are attempting to do, and any results/messages - in full.