Thanks for the info, that helps a bit but I'm afraid I'm still quite lost.
Prior to posting this question in the first post I did read about the 3dl and 3dc files, but couldnt' find a source for the 3dc files. It looks like the stock 3.0 build has many 3dl files already but no 3dc files. I did a search for 3dc and spent about 30 minutes checking each posting returned by the search but ended up without finding a link to download the files. I was going to continue searching but realized I had no clue what to do with the files, or what other things I needed to do to have the files recognized by the nav system.
Prior to my initial post I also downloaded a version of the EZrider.exe and cracked license file but it's impossible to tell which version of the EZRider was posted (Ie. if it was for 2.0 or 3.0) or what the license file would open. I understand there are a bunch of licenses out there.. I have no clue which one to grab.
Are the 3dl and 3dc files specific to a particular IGO? What I mean is... will any 3dl or 3dc file work with IGO 8.0 and 8.3? I think (not sure) that firmware 3.0101 is IGO 8.0.
(Edit) -- Just spent another 30 minutes looking for 3dc files... still no luck. I found one link for 3dc files for states I don't live in.. it was dead