If you just beat the snow out by hitting them on your leg or board they'll clear up. Just put them on and wait a couple mins, it'll clear up enough to get down.
Muscle memory will take care of your chairlift woes, If your chairlift has a bar with footrests take advantage of it! putting your other foot under the board helps too. Snowboarding uses a lot of muscles you don't use on a daily basis, that's why you're sore.. it's not just the falling.
Search for SnoWolf's threads for beginners and watch his vids - I feel like you need to practice skating and get a feel for your edges before you ride the chairlift up. Search "SnowProfessor" on YouTube too, kinda corny but good info. A Lesson would be key for sure!
Just go a lot, you'll learn faster than you think.
Last edited by MarshallV82; 01-29-2013 at 07:05 PM.