Tele, eh? for your first time defanatly do not go on a powder day, go on 4-5 day packed snow. its easy just strap em on and go... down hill turning is not so easy. for that, get some practice on the groomers, or you will be very frusterated when you get out into some powder...
I'd give ya a lesson, but I don't think you will like me very much afterward, plus I'm not that great with my telemarking...