They make an insert you can click into your bindings that will allow you freeheel motion for climbing. Check out "Backcountry access" (I think that's what its called) or ask around at the local gear shop that sells tele and AT gear. Some places rent them. You'll find yourself lugging a much heavier setup on your feet and using your ski boots in a way that they weren't designed to move but it'll give you an idea of whether you want to take the next step and get into an AT setup (see the thread in this forum) or learn to telemark.
Before you go into the backcountry, you'll want to learn about avalanche safety, pick up some more gear (beacon and shovel) and go with friends, preferrably much more experienced than you.
Nothing in the world is more yielding and gentle than water. Yet it has no equal for conquering the resistant and tough. The flexible can overcome the unbending; the soft can overcome the hard. - Lao Tse