It's about 9 euros to take the train from the port to Rome. I'm sorry I haven't yet sent Jeff any info on how to take the train. I did contact him last month about the train. So, I'll try to send him some info soon. Also, I'll forward some info on the audio guides from Rick Steves that Alice and I used a few years ago . We just did everything on our own with those audio guides. Worked out great!

Edit to add:

I sent him info on how to get train from ship to Rome:
http://www.reidsitaly.com/destinations/lazio/rome/transport/to_ship.html
and
Rick Steves audio guides:
http://www.ricksteves.com/news/travelnews/0602/rome_downloads.htm