If memory serves, as of now, narrowbanding only applies to new applications - old apps are allowed to stay at their previous spacing until 2013
Railroads - which is frequently heard in the 160 mhz area - are conventional in nature. Allocate a conventional system, then set up groups for what you want to hear. Don't forget about setting up the quick keys! We have some NJ RR stuff in our database, but whether that applies to South Jersey I have no idea.
Railroads Scanner Frequencies and Radio Frequency Reference
You should be able to use the web import to get these frequencies, or use EZ-Grab in FreeScan to pull them in. Both functions are fully defined in the user guide, which you can access by hitting
help/online help while you're online, or if you want the URL;
FreeScan User Guide - The RadioReference Wiki
You might want to go to either the Railroad or NJ forums and ask for lists in your area. Remember that FreeScan can import UASD or BuTel ARC files. I would also definitely consider purchasing the Phillyscanner guide from Scanner Master - excellent publication.
best regards..Mike