i always get that error as well, i've hit the little report button a million times and it doesn't care. but i do the similar thing and just let it show me the map and then i POI it.
And yeah, it only works on business addresses. you can do routes straight through it yet. you can use the one thing that's in some posts around here, when you put in the full google address of the route you made, and it makes an itinerary out of it.
I'm glad I'm not the only one....I wonder if we did something wrong?
joey