When you get the password, enter it into each green card to learn more. The important thing you'll learn is in the handwritten note that tells you how to reach the Scientist -- listen to the record, which will tell you which letters from "Jabberwocky" to decode.
Hint 4
Confusing? Yes, certainly, but don't worry; Nancy knows what it means. When you get hold of the right record, she'll set the rest of it up for you. All you really need to know at this point is that the reason "Jabberwocky" is important is that it will tell you how to reach the Scientist.