Wow, tele turning on xc gear is *hard* so if you enjoyed that, your really going to love it on real tele gear!
My first suggestion is to try to buy a pair of used tele boards already mounted, you could pick up some with cable bindings (far better downhill control than pins) for cheap.
But if you have your gear already and are mounting them yourself (also brave), the standard mounting position for tele gear is "chord center." There are advocates of other positions, but you can't go wrong with chord center IMO.
If you'll remember from high school geometry class that a "chord" is a straight line between two points in a curve, then you'll understand why "chord center" is the exact middle point on the chord between the (curved up) tip of your ski and its tail. Get a piece of string (preferably one that does not stretch) or a tape measure or whatever, measure the chord from the tip of your ski to its tail, mark the ends of the string , fold it in half to mark the center, position the string back on the ski, and mark on the ski where the center of the string is marked.
Mount your bindings such that the pins are on chord center.
And be sure to come back and let us know what you think of tele skiing once you get out on the snow! [img]smile.gif[/img]