Hi Ronnie. The GPS Data User Guide has a chapter about working the waypoints and routes with Mapsend. There's a link to the Guide near the bottom of the page where you got the files: http://www.adventurecycling.org/routes/gps.cfm
If that does not answer your questions, send me an email (fhiltz at yahoo dot com) and I'll put you in touch with a Mapsend user who has done it.
Hans, we need to find a file format that Delorme can import. The AC data come in three formats: Garmin MapSource, OziExplorer, and GPX. The free G7ToWin program, described in the the GPS Data User Guide, can convert OziExplorer to Delorme Street Atlas versions 3, 4, 5, 6, 7, and 8. Will Delorme Topo import any of these?