Miss Winnie's Latest Location

From where Professor Wartbobble's latest letter, I am going to guess that she is in Bethlehem. Other than that, I don't have mush of a guess.

Miss Winnie's Pilfered Prize

After consulting my teammates as to what was in the package Headmistress Winifred sent, I have come up with the following answer for the code she sent along with the package.

Stolen Quidditch World Cup Trophy

Here's hoping I'm right! It makes sense. But two questions remain: Who stole the cup, and why did they do it?