Virtual Walkers Meeting Fellow Sparkers: Help...

I'm trying to set up my route and I'm not having much success.  I finally decided to just import from Gmap Pedometer.  How do you set these things up?  I tried watching the videos, but they weren't too much help?  I tried setting up points, but I kept getting the message that the distance between the points was too large.  Sometimes it was only 10-15 miles...what's gives?  Any suggestions would be greatly appreciated.