Hey!
I might have about the same problem as you, my second front-teeth/lateral incisors or whatever they're called are rotated but all the others are straight (and
really close together!). But I'm afraid it will be a while until I can post after-pictures, I just got started!
I've googled like crazy to find a similar case (there are loads of before/after pics online), and this is the closest I have found:
http://www.oc-j.com/sept02/Invisalign.htm
My treatment is 25 upper trays/2 weeks each btw.