hey, i dont have huge amounts of experience but did take a beating learning it! it rides like a snowboard in that you'll catch an edge if the downhill wheels touch, so raising the centre wheel may help, but then you need more exaggerated movements to get onto the other edge...
basically, find a super mellow hill and pad up (elbows, hands and ass), as the slippery sucker will slide out from under you. always stay on an edge, even when you wanna go straight, and try to keep as low as you can without breaking at the waist, as this will allow better balance.

have fun!

Had a look at the website because I had never heard of them. Pretty radical and a bit like why did someone not think of that before but adds a whole new dimension to skateboarding. They are not that expensive either.

Knee pads, elbow pads, bum pad and helmet are going to pay off if you have not snow boarded. Keep us posted on progress

^ Had to be a drawback but now that you point it out it sticks out like dogs balls. I noticed on the training video where the bloke quite unceremoniously tackles the chick being interviewed that there is a fair amount of mucking around with the hieght of the wheels as well.