I've got access to the remote machine and most commands work fine (great instructions - thanks!) but when I try to copy the screenshots between machines I get the following message:
scp ~/screen.pdf myshortusername@myIP:
ssh: connect to address remoteIP port 22: Operation timed out
Non-standard rules in my firewall were preventing access initially, but I've now set them to the apple defaults and have allowed ftp on both machines - is there something else I need to do to make it possible to transfer files between the computers? This is just a local network I'm testing on, with the connection running through a router.