Exporting data from JD 2600

Never did this before, so just getting my feet wet. I haven't got into creating prescription maps or downloading information yet. I was out spraying and decided to start flagging items as well as having boundaries, etc for all fields. I understand how to download onto a USB, but what program will I need to download or purchase to interpret the information. At this point in time, all I would like is just current field maps and possibly elevation maps for fall scraper work. It's a 2600 with itc, but I also have a 1800 with 3000 during seeding which should in theory provide more accurate elevations.

I've looked briefly at jd apex, agleader SMS, and farm lead, but all this amounts to is about 5 mins of reading. I was going to download the demos and try them this week.