I will give this a go, but this requires each computer to have all of the users on. So for example if i network three computers on a network and 5 users on each computer that means I need to have 15 users on each computer so they can access the drives via passworded sharing.
It seemed like it was going to be easier, especially as when I tried to share it asked for the 'location' of the user. I assumed that I could find the remote computer and select the user from that computer!
I will mark this as answered after I try the fix. thanks.