yea i would have figured that they would be a little displeased so I only told him I was trying to use 3rd party maps, when he asked who, I said it was the canadian federal government free topo maps.
anyway, i managed to figure it out, dont ask me how... just downloading and installing crap loads of programs and then something triggered mapsource to open. it recognized the "calgary trails" map and displayed it. I have it installed over top of my city nav.
One thing that changed and is weird: When I tell it to "GO" to the spot I have designated as Margaret lake, instead of it doing the usual trip 1a -> highway 40 -> "unpaved road" -> Wiaprous Valley Rd and then drawing a straight line directly to the ML Save point (skipping the "non existing" trails), it now wants to travel on HWY 1 all the way out to H"WY 95 in Golden (!), then all the way back to the 1a in canmore -> hwy 40 up 40 "forestry trunk rd" and then straight through and over mocking bird & Ghost country trails to ML.
obviously a little bit of a glitch, but hey, the maps are there so I am happy.