You will be able to copy the jobs over, the other questions I will leave to other much more experienced.
If you are on the job setup screen, select the job you want to copy over, choose copy in the left column, and select the media server you are copying the job to. Now you can only copy the jobs if the other media server is setup the correct way. You can copy any backup to disk jobs right now, but unless you have a tape drive/library/whatever on the other server the job copy will not work.
You can select multiple jobs to copy over at once, which is handy. Now when I did it, on the server I was moving from, all the copy jobs reported as failed. But on the new media server they copied and look fine.
I am migrating to my new server in a couple weeks, but everything appears to be setup to go. So hopefully this helps.