Okay That I can help you with lol:)
http://www.youtube.com/watch?v=Vdt0AR7rJxo Here is a simple tutorial on how to actually curl your hair she is usong a 3/4 inch curling iron.
For tsubasa's look a 1 inch would do perfectly. You would curl the top layers and using your curling iron for the very bottom layer flip that up (notice the bottom layer in the picture) Serperate the curls and then hairspray if needed. Using either a big roller or a bigger curling iron curl your bangs under not over. Hairspray some more and that should do it:)