need help entering a trip's worth of GPS points
I am really confused on how to use the Magellan software.  I want to input my GPS coordinates that will be the waypoints of my trip.
The Magellan software includes the Magellan POI File Editor, so I tried that.  I entered in about 100 GPS points that I want to use as Waypoints.  It's very difficult to do so, because the software wants to use digital coordinates, and everything I own is in D/M/S format, so I have to convert every entry to decimal first.  Takes forever.
But it's done, I have saved the file, and I copied the file to the onboard memory card I installed.
But I can't seem to access any of my info!  How on earth do you plan a trip on this thing?  Can you do it via PC software, or do you have to use the screen interface?
Please help, leaving in 24 hours for Utah!